If you're going to be buying an air compressor for your barn, why not just get the air compressor and knock together a small shelter for it, sort of like those plastic things Sears, Home Depot, etc. sell for garden tools? Then get an air impact wrench.
Good buy until the barn is built with shop air...(6 mos-1 year)
OR...
Waste of $200.00
Any recommendations appreciated...
Matt
I really like my $30 HF electric impact wrench.