300 or so for the GC's (price is universally firm)
300-375 on the AGX's (possibly cheaper, depending on who you go through)

I have a B&M short shifter with prothane bushings. I got a good deal on it, so i coughed up the extra 40 bucks to get it installed. Chris at Autolink did it in like 40 minutes. Handed over the keys, went to mcdonalds, by the time i was back, i waited less than 5 minutes and he was done. If i did it myself, it would have taken me 40 minutes just to jack up my car high enough.

my car is so low my jack doesnt go underneath until i raise the side of the car with the factory scissor jack, and i cant use the radiator support as a jacking point because of the damage inflicted when i crashed. so i have to use the tow hooks, one side at a time. i dont mind doing this all the time, but not for a short shifter install where i would have barely any room to work around. O yeah, my parents dont like it when i work on my car, because they think i should be studying. so thats another factor.