OK, I got this done today!
I was off on the amount of time it took to install, I gave myself an hour, it took more like 20 minutes
The dentist was VERY pleased, she went on to tell me that the equipment inside the unit would cost near $10,000 to replace
There is a VERY good compressor, and two special filtration and drying units for the compressed air. This is the air that the tools the dentist uses run on. The one filter thing looked to be a replaceable element type, the element is replaced every 3 months or so, and is about 18"x18"x12" round thing, the second unit, which I could not figure out if it was a drier, or a filter, or both, was some kind of electrostatic unit, she said it was replace a few years ago and cost well over $5000, ouch!
When she asked the price, I could have easily said $300 or $400 and I think she would have paid, but I've got all of three hours into this, I did it in my extra time, I did it at my own pace and I used almost all recycled material, so I said $100. I think she now wants me to make some other things, storage shelves and such, I'll set the price for those beforehand, and make sure they are a little more realistic.
I'm satisfied I did a good job at a good price.
Thanks for the help guys!
PS, in the last pic you can see my "Work Truck"