the conversion you want to do is pricey idea.. i wouldn't touch a job like that for less than 20 grand... first off the travel trailer idea won't really work having know several people with converted chevy and ford van conversion "trailers"... the axle set back will make it tow badly at best.. if you absolutely want to go this route the best way to go as i told them is go fifth wheel though with yours you will need something no smaller than class 5 truck {f550 c5500 etc} to handle the pin weight..as has been stated the engine and trans will not cover cost of conversion.. figure 12/14 thousand lbs after stripping before conversion.. plus it will have to be inspected for the new plates..so sell and find trailer with same floor plan.. their web site states your unit weighs around 18 with 22gvwr