i'd prefer aquahot as well on our bunkhouse, but as you know, it is a limited market for bunkhouses, without even considering an upgrade like aquahot, especially in your price range.
What might be your drive for aquahot? I would like it too, but our DP has weathered well using mostly 110v plug in heaters, with very little use of our propane furnace. Matter of fact, we use propane very little, mainly only the stove every now and then. With the convection microwave and electric grill, we still have 2/3 tank of propane after almost 10 months and 20k miles. Nice.
The Turners 2014 Thor Palazzo DP 33.3 35' Bunkhouse
BlueOx, '14 Ford Fiesta, DishHD, KingTailgater2, WifiRanger
50k+miles, 200+ parks, 47 states&Canada provinces, since Aug'14