[suicideneil]

I hate plastic, and they will break again.

$100 wont buy you much in the way of upgrades- the hybrid bulks and 1/8 scale gears to go inside them are more like about $300 or so. Best you could do is get the FLM bulks (or NewEra or Garc), then wait and see what Linc comes up with in the way of modified LST diffs as a cheap alternative to hybirds or UE diffs.