OK looks like a Dakota Digital gauge which is nice unit. Compressors are the nicer Viair 460s or 480s. Switchbox is kinda cheap and have had issues. Valves appear to be Danz/Asco which are good, just bulky when installed. A manifold setup would be alot cleaner looking installed and simpler. You could sell the brass valves NP to a minitrucker. Can't tell if the tank is chrome or stainless. If chrome not good quality it will rust out eventually. Are the brackets on the bags? Looks like it.