Need advice on Savage X ss

I'm on my way converting my Savage X ss to brushless with direct drive system. may i know whether the LSP diff (complete assy) can fit into the Savage gearbox? what center drive shaft should i choose since the pinion from LSP is different from Savage? planning to use X1-CRT center diff with 46T plastic spur.

currently making the bracket to hold the center diff....still long way to go....

thank you

VK