How many of us are there? Owners of Dodge based RV's?

Well shes finally all legal eagle after being set to the side for a year the ford tires and rims off my f350 performed well. Next is to get the exhaust fixed have a leak on the passenger side where the manifold meets collector. Does anyone have an idea on where i can get manifolds as my drivers side is cracked. Also cam question what would be the best cam to put into the 360