Action can play other actions as I wrote above.,  The hard part is cropping your image document to a 320:213 aspect ratio.  If you download my crafting actions package it contains a plug-in script I wrote for use in actions Like actions can play other actions by selecting the action in the actions palette and using the play button. Actions can also use scripts by recording menu File>Scripts>Script name.  The great thing about plug-in is many have programmed in action support.  So if you download my package and install my scripts you can record menu File>Automate>AspectRatioSelection... then in the plug-jn scripts dialog you set 320 213 centered rectangle replace selection 0 feather and no anti-alias the plug-in will record those settings into your action step. When the action is played the dialog will be bypassed the largest 320:213 centered aspect ratio selection  will be set, You follow that step with Image Crop then you record selecting the watermark action in the actions palette and click play. The action has three steps.

I recorded the two actions the way I would. I the saved it as a text file so you can read the steps.  The watermark action set Photoshop ruler units to inches so if you record things like moves and such the are recorded in inch units. The action resizes the image width to 8" without resampling.  No pixels are changed all the happens is the document DPI resolution is set so the document would print 8" wide.  Just scales the image to 8" so if you record things like text layers the font size will be approbate for an 8" wide image.  If to add canvas the number of pixels will in inches using the 8" wide DPI resolution. The Action then Places in the logo the place transform is used to move the logo to the top left corner then holding dot the shift key the lower right corner is draged so the logo is 2" wide using the visible rule frame as a guide. The shift key constrains the transform so the logo does not deform. To size the logo 1/4 the width of the document 2"/8" .  The action then select all and modifies the selection border 20 px and then inverts the border selection so all of the image is selected but the border. The Logo is the aligned to the bottom right of the selection.

Here is the TwoActions Set

Set: TwoActions

          Action: Watermark

                    Set general preferences of current application

                              To: General Preferences

                              true

                    Set units preferences of current application

                              To: Units & Ruler Preferences

                              ruler units: Inches

                              type units: Points

                    Image Size

                              Width: 8 Inches

                    Place

                              D:\Mr Mouse\My Documents\My Pictures\Working On\TextTutorial\TextTurorial.png

                              Center: center

                              Translate: -3.003 Inches, -2.358 Inches

                              Width: 44.3%

                              Height: 44.5%

                    Set Selection

                              To: all

                    Border

                              Width: 20 pixels

                    Inverse

                    Align current layer

                              Using: bottom edges

                    Align current layer

                              Using: right edges

                    Set Selection

                              To: none

          Action: Crop and Watermark

                    Aspect Ratio Selection

                               “Aspect Ratio Selection action settings”

                              height: 213 pixels

                              width: 320 pixels

                              With center

                              Without border

                              With rectangle

                              Without ellipse

                              With replace

                              Without add

                              Without subtract

                              Without intersect

                              With selection

                              Without path

                              feather: 0 pixels

                              Without anti-alias

                    Crop

                              With Delete Cropped Pixels

                    Play action “Watermark” of set “TwoActions”