I have a 2004 Chevy Colorado. Could I fit a K5LA under it/where the spare tire is? Or maybe a K3. Complete with lets say, 10 gal. of air? I would like the bed to be open, so i don’t really want the tanks mounted in the bed. I was going to order the Shocker kit last year, but needed money for “other stuff”, and now im regretting it, and now would like to go all out once I get the cash.