Hello Jeff,I use cardboard boxes from the local u-haul shipping center.They are very large and thick,a single light fixture attached from the rear heat and dries paint in a reasonable time and its portable.Even using a wood frame and covering it with thick cardboard makes an excellent paint booth.What you don't spend on the paint booth you can invest in more paints,better air brush,up grade your compressor,I understand wanting something that seems professional and well built,but a paint booth gets paint on it,are you going to be to concerned with overspray on the booth that cost 200+ or a wood framed booth that has cardboard sides you can replace for pennies? I have attached some pictures of a TIGER I painted on and in a cardboard booth,and one picture of both my Tigers,the 1/6 scale will have to be painted.I intend to build a cardboard walls that will attach to my work bench which the big Tiger sits on and will allow me to walk around,Local appliance store often throws away large card board boxes,2x4 are two bucks each,when not in use this paint booth can be stored behind my work bench for future use.Well may not be the best idea but it worked for my 1/16 scale tanks and it will work for my 1/6 scale as well.Good luck on your paint booth,Blake 1-Saxondog