Thanx all of you for your comments, and I never thought of a spare tire!
I went with Sal's suggestion of a 5 gal tank from Sears (on sale btw). I went to my storage place and found everything that I needed including a compressor (no tank on it) that fills my tank to 115psi with no problem. I had a storage container in my storage unit full of compressor stuff (brand new including the compressor) all I had to do was get the tank. What a great setup; I've got to take a picture of it for others who may be in my situation. Now to see how long a tank will last, but no worries with my little compressor to refill it.
Thanks for all your comments (you too Alan) and suggestions. Man, this setup works just fantastic; I cant believe I had forgotten about my compressor project (must deffinitely have "CRS")