the bmx bar kit is a must for anyone over 4 foot tall. lots of places sell em. mine was a tbr kit. i think cycle gear has one in stock, but probably expensive to buy from them. you can get i-shocks on ebay for decent prices, or you can just get a stiffer spring for the stock shock to keep it from sagging so much when you sit on it. also makes wheelies easier with a stiffer shock/spring. 50stunt.com sell a longer, stronger shifter that has a hinged shift peg. i bent the hell out of mine a few times, and just bent it back, never had it break on me.

personally, i'd go with a bmx bar kit, and get the stiffer shock spring, and the +1 fork legs and stiffer springs with delrin bushings for the front (same combo bustadust is running on his front end) that ought to make it pretty bulletproof, unless you smack a curb or something at a decent speed.