EXPORT HELP

So I created a logo on illustrator for my boats design logo and I was told to use vector file so I created it in illustrator with some help from my wife. The reason I wanted to do it with vector is because I need to make tiny stickers with it and also blow it up to about a 3 foot x 3 foot sticker. I am very happy with the logo. I think it looks good! I of course, am all finished and then run into the problem of exporting and saving. When I tried to export it to press quality PDF it says

“ the documents transparency space doesn’t match the destination color space shown in the output panel to avoid color appearance changes in the PDF click cancel and choose a destination color space that matches the document color space or click OK to continue with current settings”

MY GOAL is to send the logo to a commercial printing company. So what I did is went to output settings, and changed the destination from default CMYK to RGB (because I looked up best destination for press printing on google) and saved it. I also did a different save where I just said screw it and clicked OK to save it as CMYK to see the difference. I don’t think I see any difference in the two. 

I just don’t want to send the wrong file to the printing company and waste a bunch of money when it comes out the wrong color or something.

I also saved both of the files with compatibility acrobat 5 I hope that is OK.

Thanks for any help!

I attached the two files below