Hehehe. I spent about 13 hours total on the KMA that I boguht from Mustard Custard. It was originally pianted with Yellow bedliner. I HATE that Stuff!!! The overall results were pretty good, and I'm very happy with it, and of course the price was right (excluding the time and labor).
And it wasnt 1:30 for all four AT tires, that was for 1 tire...Obviously with more tanks that would decrease significantly. I'll probably bolt in a couple air tanks in the ARB and KMA bumpers.
Where did you get a pressure switch? I was mine to keep the psi around 90 or so, maybe 100psi. I normally keep my tank around 120psi, I try not to push it any further. I dont think it would be safe with the fittings i used.
As far as the current draw, I havent a clue where to find out. I havent hooked it up "permanently" yet. It is just hooked up to two battery clamps for now. I have a 40 amp fuse for it, I dont know if it'll need a 60 amp fuse. The maximum PSI I have gotten out of this Caddy pump is around 130psi or so, I didnt want the compressor to have to work that hard so I set the regulator at 90psi.
I got it from a local junkyard for $30. I found out after I bought it that if I were to find a Range Rover, They had an ARB air compressor option to operate air suspension and air lockers. That would be IDEAL, but pricey. I know that the Caddy one worked before I bought it, I dont know about the reliablity of the Lincoln LSC, or continental pumps, and they can be expensive, ($50 to $100 depending on junkyard).
The reason why I chose caddy, is because you always hear about LSC's blowing up the air bags in the rear, therefore the compressor is always running trying to raise the destroyed suspension.
The main reason the caddy compressor would be in the jnukyard is that the Auto Leveler switch would break and the compressor wouldnt shut off, instead of fixing it, people often Unplugged the compressor and didnt use the ride leveling option, i.e. less use.