Cabover leaks - Would This Work

We were aware of the weaknesses of the cabover when it comes to leaking. I get up in that bed every now and then and feel all over...if I smell anything funny or feel anything that is remotely damp, then we'll know we have some work to do there...and I pray we catch it before it becomes a major problem. If we didn't have to provide shelter for other loved ones:) we would have gone with something that slept fewer, but this floorplan was too perfect for us...

OP, good luck with your future purchase. Do you have ANYONE who could help you keep on top of this issue?