You can ditch the stock chain guide, just use an e13 bb mount adapter. The bb is 100mm, so your current cranks wont fit. A 1/4" shorter shock is a common mod, bit under 8" of travel and geometry closer to current dh thinking. In any configuration a dh comp will run rings around a big hit with a 24" rear wheel (I havent ridden any of the newer ones). My old dh comp was ridden to a novice class dh win last week by a mate!
And a photo of Black Betty -
And a photo of Black Betty -