That just doesn't make any sense ... If you haven't found anyone that doesn't think you're crazy, there might be a reason (no offense intended)
I think it's a nice floorplan but I don't see anything about it that would make it better than the hundreds of bumper pull or fifth-wheel trailers that you could buy for 1/2 the money. I honestly think that other than being driveable (which is a big deal for us), many bumper-pulls or fifth-wheel floorplans are better than any floorplan you can get on a Class A.
I suspect that the labour involved in pulling the motor and transmission would barely be covered by what you'll get for them. I don't think there's that much market for used components like that and it's one thing to pull things off a wreck but it's very different when you are just trying to remove them but don't want to damage the vehicle or the components you're removing.
Your mh is worth somewhere in the ballpark of $50k (really depends on the condition and local market) - there has to be a better trailer available for even 35k that would be some sort of franken-trailer and will have some residual value after you use it.