the 6’x4’x2’oven is the electrical curing oven for powder coating?
we can produce and sell,but it is a very small oven and we are in China,so the freight is expensive,it is better to buy one from the factory that near you.
do you use the plastic board in the powder hopper? If yes and it is the fluidizing board made of PE material,it is used for the powder atomization.We sell this item.If some need it please contact me ,my mail email@example.com
2-5 miles is ok,5-6 miles is also ok,it is depend on the different work piece.it is better you test it at first to check the effect and then go to produce the bulk.you can paint the thickness as you like.