It's definately worth taking to a shop, exhaust bolts suck, and trying to wiggle it out of there is a PITA, I think I actually dropped the trans a bit to get it out the first time. I would say 3 hours is a good estimate, and when you go in to pay they will say "That job sucked" lol
2001 Ironman Daily Driver... 3.5" suspension lift (OME912 springs and 1" spring spacer), ball joint flip, 1.5" front diff. drop, 33"x12.5 TrXus MT, 16x10 Eagle Alloy rims, Interceptor, PV muffler, K&N air filter, Alpine Supercharger, Bilstein shocks, and some trimming.
2000 Ironman Project LS-1 VX... very slow progress but someday....... ohhhhh someday......