not sure about the mid pipe, and I would like to know too since I want to try to get a mid section made that would delete the CAT on the vibrant exhaust, but as far as welding, I had 2 little tabs welded onto my FMIC for mounting, and a BOV flange welded onto the hot pipe and it cost just about $100+ or so, I think (at least around here) that welding is at least as much as mechanics, pretty sure more if I remember correctly, as far as time, and then whatever the cost of the actual welding supplies and stuff\
and ya, I keep planning to finish up spending money on the car for a while, and I am in the GB for the Perrin fuel rail once that gets going, I'm waiting for my cs front strut tower bar once they get it back in stock next week, and I have to buy new tires which should run me about $600-700 about.. lol so much for saving money, but oh well, eventually I will run out and I will just be able to save up for the whole deal, forged/bigger turbo ect..oh and I forgot to mention the 2 G2 custom paint kits, the first one came out wrong, and the 2nd one they are still trying to find a color to match that is close enough to spicy orange but is not a tri-color.. gotta email them to check in soon too... each kit being $120 lol