brushless mammoth st help

[jalodo56]

hi I have just converted my mammoth, with an kb45 10xl runing on 6s, it is very very powerful, i need to change the diffs for the diffs of the xtm mmt because the stock diffs on the mammoth are very bad for that motor..... I do all things for the conversion on CF and it is very strenght.... I want to change a few things, better shocks, but only 4, an rollcage and tower post for the back..... Can anyone recommend me a good shocks for that truck? and a rollcage?
two pics....