Flash AS2 to Animate AS3 application migration

We have a heavily graphical legacy desktop Flash AS2 application that we need to rebuild in Animate, but in all the research I've done so far, I'm not sure if it's achievable with the architecture allowable in Animate and AS3.

The app has a home/landing page that is essentially used as a container to load and switch children swf files (MovieClipLoader with onLoadInit listener) as well as a data XML that is used by all children for content and menus. All movies are single frame controlled with AS2 script. This home page has 5 layers, the background layer, 2 x dynamic 'container' layers, the top layer (for heading and menu), and actions layer. The child movies are dynamically loaded by the landing page into the dynamic 'container' layers, and once loaded, the children movies call functions within landing page, referred to by _level0, which is no longer available in AS3 (and root refers to the base class of the SWF's DisplayObject). From a user perspective, the app goes 4-5 pages deep, but in actual fact, it's all done in the landing page. The 2 x dynamic layers allowed us to dynamically load the next page as the current page transitioned out creating a seemless visual experience. Due to having a large amount of different types of child pages, this architecture was greatly beneficial to be able to fix or update, and remotely upload individual child swf files instead of having to upload an entire application.

I hope that makes sense, and assuming that I've given enough information (I tried not to ramble on), the question is, would this architecture be achievable in Animate and AS3? If so, could I please be directed to a tutorial of such functionality?

Many thanks in advance, Max.