jonathon,
When money is no object and you pay someone else to put a compressor into your truck and teach you how to use it ARB Twin is a clear winner, you can even run two of them for even more power. For most of us here, we have a budget but more importantly we like to tinker with toys and upgrades ourselves. Puma is a clear winner, you can even spend more on an ExtremeAir Magnum (Puma but with different stickers).
Running a Puma with an SB50 is perfect for a portable setup.
This is exactly how I ran it. 6ga wire to an SB50. Used that same SB50 with jumper cables to jump start other cars, super convenient. Dust cap did keep on blowing off thought.
I got tired of lugging it in and out of the truck on every trip so I ended up divorcing it from the tank, mounting it upside-down inside my Suburban and running a larger 2.5gal tank, which is enough to run my air impact to take lug nuts off.
I also ran the controls into my breadbox in the rear as well as to the outside of the truck.
Instead of a maxifuse i used a 40amp circuit breaker, wasn't enough, went up to 50amp, still not enough, 60amp, still kept on popping after a few minutes of continuous use, so I scrapped the circuit breaker all together, have not had any issues since. Have run it for over an hour playing with air tools and never had any issues.
If I had to do it all over again, I would divorce the Puma from the tank, put it in a pelican case or ammo can, run 6ga wire to SB50 and have an on/off switch. This would be cheap, quick, easy and portable. Bu then again having it permanently mounted in the truck is pretty darn handy.
Hope this helps make the water muddy and look forward to seeing your setup.