You've listed the main parts... I usually get one of all suspension the parts, front, rear wishbones and shock towers.
I'd probably get a drive shaft too...not that these break often but it's a good thing to have.
I'd also get a new 'F' or adjustable servo horn and change the stock one. I've just ordered the core aluminium adjustable grip servo horn to solve a few I think it will fit, I got the blue one too so it should look cool as well
I think most 12mm hex wheels will work...fastrak etc should be fine, I'll check later.
J