rerelease Ulitma suggested spares

[Saito]

Are there any weak spots or suggested spares to pick up for the Ultima rerelease kit while they are available? (spurs gears, arms, uprights, anything, etc.)
I've read the chassis could at times bend. Is this only in severe crash situations? Would a Factory Works fiberglass upper chassis deck be a good investment for durability or does the stock piece do the job adequately?
Thanks.

[BattleTrak]

Extra front end parts are always a good idea.. front arms, bulkhead, hinge pins..etc. The plastic spur gear too..