This was done in WB. The requirement for taking a field was all buildings down (sometimes including ack, sometimes not, depending on the era) last I checked.
Synching ack rebuild with building rebuild worked fine as long as you bombed the hangers (which you might need to do just to close the field). It did force people to CAP a field after they took it, and made field fights a knock-down, drag-out affair if the other side wanted to seen Ju52's to contest possession from a nearby field.
The only real negative is that at the current 110 person population base, it might slow field taking to a crawl. There is nowhere near the cooperation I saw in WB in AH, and either cooridination or sheer numbers are needed to take a field and hold it if the acks are down. This might improve with numbers and time (when I started WB, 90 was a high number in the MA), and coordination increased with numbers and evolutionary pressure.
Thog