I think what he's saying is that he wants the hot-pad to be a "safe" spot where a plane can't be vultched while it re-arms, not necessarilly a structure at all. To me that sounds a little too gamey for AH. My feeling is that one of the chances you take when you hot pad is getting cherry picked. If you don't like the odds then tower. If FH or ord is down, then take your chances on the hot pad. If you get cherry picked, you obviously don't have a cap on your own base...
The only thing I would be for around the hot pad would possibly be barage ballons to protect from dive bombing and straffing, but I don't know how historically accurate that would be.
The Skilless vote (as if he had one) is nay.