I know this is a "fad" from the past (2009? or so), but I am the proud owner of a Polaroid 110A and after some thought, I think I found a way to covert it to packfilm unlike eveything else I've seen to date. The following is a copy and paste from my Flickr pic of my camera... I'm wanting thoughts and comments my idea. I can post pics of a 160 I've been tearing apart and the pieces from the donor packfilm camera if needed to show my concept better:

"Currently I'm debating on converting this camera to packfilm. Not the kind you see on the net, but rather a novel way. I have an old cheap Keystone Everflash packfilm camera that I can remove the packfilm holder and rollers quite simply. Then mount the holder inside the camera, and the rollers onto the inside of the camera's back. The only thing stopping this conversion is the need to increase the depth of the back to allow the modification. This would require removing a portion of the flat area of the back, and leaving the frame part, and then fabrication of a filler piece to mount the roller to it, and a spring clip to push on the packfilm case when the back is closed. One would simply be extending the hump height of the back, all the way to the other end... if you get what I'm trying to describe. So, the finished product would look like it was meant to be that way... get it?
I have a 160 that I've been using to tear apart and weight all the options of conversion before touching the 110A. When I removed the film plane film guide plate by grinding off the tops of the rivets and prying it out, I found this is what holds the larger end of the bellows to the body. I also discovered this gives a flat surface to mount the packfilm holder quite nicely, and a slightly larger opening to allow the holder to fit right in. So, a means to re-mount the bellows would be required.
Something else interesting is that by using an old used packfilm cartridge, one can load 120/220 single cut piece tapped, and load these and remove them in a dark bag. So, single shot 120/220 film shots would be possible as well. Not only single shot film, but other medium could be found to use as well, like glass plates and so on.
Another advantage is that one can use a cut sheet of frosted glass or opaque scotch tape to check focus and adjust the camera's focus to match.
Anyway, it's still just an idea right now, and if I decide to do it, I'll post pics of the whole process in a set all by themselves, with notes and directions for anyone else that wants to try it. It may be awhile yet before I do, however. So, please don't hold your breath waiting. I have to do it on the 160 first, and then move those parts and processes over to the 110A." (end of comments from my Flickr page).

I'm needing comments from experienced builders to help me devise and update my plans as needed, before I attempt the conversion.

Thank you!