to remove transmission from one car, make it so that can move again.... take out your transmission, then put back in the other transmission..............
anyplace worth paying money to will charge about 1600+ for that
edit* now that I think about it again... if u gotta make donor car roll ever again... prolly more like 2000 instead of 1600
you would have to reattach subframe, suspension, mounts, and tires......... so thats prolly about a good 200 bucks worth of work right there EASILY...........