Hey, I needed 4 Rustlers 2wd to satisfy my thirst. And a 4x4. I think they made the 4x4 Rustler because every warranty card I filled out asked what I want them to build next. i always said 4 wheel drive Rustler.
You will need esc extender extension cables for that, I think I used 6 inch or 9 inch long, you might want to measure. For velineon 3500, I think the bullet connector size is 3.5mm, but could be 4mm. The battery cable should reach ok, and that's good, best to keep the battery cables as short as...
I built 2 Heisenburg Cup Race cars. https://www.rctalk.com/forum/threads/trying-it-your-way.127300/post-1257954 (Actually, that is the number I own, I actually have built 4 so far)
The biggest thing I did, was to move the ESC to the front for better weight distribution. It is a paved track...