Harbor freight is up on 161 and cleveland ave.
2441 E. DUBLIN-GRANDVILLE
http://www.harborfreight.com/
You can get alot of stuff there for a prety fair price, but keep in mind almost all of it is china stuff that is not made as well as snap on matco or mac.
I do have a set of metric and sae combo wrences from hrbor freight (pitsburgh steel I think is one of the house brand names) and they work good for general use, just arent prety like a set of polished snapons.
I wouldnt buy an impact wrench there, power tools, or anything tha you will be putting some major hell to.
It would be a good starting point to get tools so you can get the job done, but they most likely they will break, but by then hopefully you have saved enough to get better tools.
As far as the air ratchet in high TQ ratings, I doubt you would find one, since it can only apply as much torque as you can hold, and there arent alot of people that can apply 200 ft lbs to an 8-10" long tool. Kinda a safety thing so the ratchet dosent snap back around and pop your wrist.