One of the main reasons that I went with a DP was less rear overhang compared with the gas coaches. I would imagine that if you put even more weight on the front axle with a front diesel you could end up with the rear axle around the middle of the coach. I do like not hearing the engine at all during normal driving but I do hear the fan when it goes into high speed on hills. It is not bad but I feel that if it was 30 feet closer it would be much worse. The long driveshaft and exhaust system would probably interfere with basement storage a lot. There are drawbacks too but that is not what the op asked about. On the other hand, I would be interested in a rear gasser if that is available when I make my next purchase.