Since I still haven't made any order yet, does anyone have any suggestions for what to get, where to get it, etc?
3rd time you've asked. good goddd
Get the parts on this list and you should be good.

x2

x2

x1 (You'll only ever need one of these)

x1 (If you plan on getting more than two motors then I recommend 2 or more)
Then you'll want two battery boxes. It's up to you what style you want.
Edit: Oh yeah, and if you click on the images it takes you to the Bricklink pages for those items.