I've got a york compressor and since I installed my new exhaust I had to get rid of the crappy tank the PO installed uner my CJ. Now I want to get a new tank in there before the bash.....I know I'm short on time.....but I need to know how small is too small. I wanted to put one on my fenderwell in the CJ but it looks like I'll be tight for space between my roll bar and the storage box I've got in the rear. I've found a website that has everything from a 1/4 gallon up to large tanks. So what would be the smallest for filling up tires quickly and running air tools like an impact gun?