[FED 387]

ALL motorhomes have their advantages and their drawbacks. Just comparing a gas vs. diesel RV the fuel milage you get from a diesel will probably be at least 50% better than any gas engine. So if you get 5-8 MPG maybe more with the diesel you can expect to get 3-5 maybe more with your gas RV. A diesel engine RV is usually put into a much beefier chassis,with a heavy duty suspension,driveline,brakes,cooling etc compared to a typical gas engine RV. Regardless of what you end up with make sure you have a BIG transmission cooler, get the biggest one you can get in there to make that trans live!!!

Not sure of what size trailer you will be using but remember that many states have Maximum Overall Length Restrictions regarding trailer and towing vehicle combinations. Many have the maximum length at around 65 feet so to keep inside of those dimensions you might find it kind of difficult to find a suitable RV regardless of engine type to handle your trailer especially if you have a trailer with a 28 foot box and a 4 foot drawbar you are 32 feet OAL for the trailer which leaves you 32 foot or less for the RV!. Just saying but maybe keep on looking and research it a bit more until you can find the "right MH" for your application.
There are several racers on here that are involved with RV dealers either as owners or employees and a few trailer dealer racers might just want to get their feedback on what to avoid or what to make sure you have on that RV. Also don't be afraid when at the track to ask others what they like or dislike about their particular rig ------my 2 cents FED387