We built it ourselves. One of my FF's is a welder and did all the fab work and Diamond C Sandblasting in Granbury did the paint work. It turned out better than I ever thought it would. The Forest Service gave us the truck and part of the deal is it must be painted. They also gave us $20k to buy a new slip on unit. It was something we couldn't pass up. It really doesn't need a siren but if you have lights then you have to have a siren and you really needs strobes on a fire scene. It has a 600 gallon tank and weighed in at 23,320 full of fuel, water and a 200 lb driver. It runs and drives way better than the M813 we sold.