Thanks for all the advice on the DP, but so far we have not been unable to ccome to terms on price. We are now looking at a 36' with an 8.1 gas, vortec on the workhorse chassis and a allison tranny. Does anyone drive something similar, if so, what type of mileage can you expect to get. Sorry I do not have the GVW but I's just looking for a ballpark figure for the difference between this one and the Ford V-10. Thanks again, Stan