So I finally accumulated the first three major ingredients for my trailer mounted RF rig. The cooking chamber tank is 36" diameter by 48" long...I think that calculated out to about 205 gallons-ish. Cost $20. The firebox is an 80 gallon air compressor tank found on Craigslist for $70. It's a little bigger than the recommended 1/3 ratio, but I'm thinking that won't be a huge problem. Originally I was given a free trailer, but when I picked it up I realized how small it was It's only 3 feet across the frame and 4 feet from outside the tires. I was worried about it's weight capacity as well as its stability with it being so narrow with the tank on top. So today I picked up a truck bed trailer on Craigslist for $50 delivered. Now I dont have to worry about weight or stability.
The trailer has some work to be done. I think we'll grind off all the old truck bits and cut a coil out of the springs to lower it some. Eventually I'll spend the money on some better looking rims and shorter sidewall tires, but not worried about it right now.
In the pictures, you can see the compressor tank in the foreground of the trailer picture. Not sure of the thickness of the metal, but tapping on it feels and sounds pretty thick. The plate on top is 1/4 and I'm guessing that the tank will be 3/16.
So I'll keep the pictures coming as the build progresses. Excited to get started. I'm feeling pretty good about this as I only have $140 into it thus far. I think I'll just put two racks into it...but well see what the space feels like when we cut it open and start laying out. I guess I can always allow for three racks and just run as many as I want. Two would give just about 20 sq ft...probably plenty.