RE: CEN GSR 5.0 vs. Losi Aftershock
I had both trucks, and I liked my Aftershock better overall. There's a Raminator/LST2 on eBay right now that has pretty much all the upgrades you have listed. It looks good, and at $229 it's a steal. Drop a LRP .30 in that truck and it would be a beast. The Losi trucks seem to have a good balance of every desirable aspect in a MT: speed ,size, handling, and durability. I had more fun with that Aftershock than just about any other truck I've ever owned. Good luck on whatever you decide to get.