I remembered reading of adapting Hasselblad 70mm backs to use non-perf film, so I did a quick search. A poster in this thread mentions an adapter kit, but hadn't used it: http://photo.net/medium-format-photography-forum/00YHgR
This thread: http://www.markerink.org/WJM/HTML/70m_hass.htm has mention of the conversion not working well with motor drive cameras. It may be worthwhile to search for more information on using non-perf film with adapters. Possibly there is a conversion which works well. If so, then it might be worth slitting 9 1/2" aerial film. It would be interesting to find out if the non-perf conversion might work okay shooting single frames, as with an intervalometer, but when shooting bursts of several frames, the film starts to slip.