Buy
Flm hybrid bulks with 1/8 diffs-bulletproof
Flm or ue towers With plastic body posts.
Ue super shocks 4 should be fine but buy another set for back up
Rpm Arms
Traxxas cvds and center steel driveshafts
Tekno revo knuckles
Flm chassis
buy another new emaxx bell crank[combine just the bell crank part(the one with the spring) it will get rid of a lot of slop in the knuckles]

If you can find
Hardcore racing skid plates

As for turnbuckles, I don't know

This will be a low budget pretty much bullet proof emaxx.