build a gmaxx and i need help

[Maxxrickard]

but mike dont have diffs, he is out of stock. and what is the difference between HB lightning and lightnning PRO? should i take the "PRO"?
just put in the diff and pinion in the hybrid, nothingels?
i shop gladly at Mikes but everyting is out of stock...

FLM towers, is it one or two i get in one package?
screw to the hole car? screw to fix the shocks to the towers? i think i will go for the traxxas big bore(8), is that a god choice?oli?

for start i need.
-chassi (out of stock)
-FLM towers
-FLM hybrid bulkhead
-HB diff (out of stock)