Bill, yes, it rolled up fine for my test. That's with the original backing paper, I think it should be okay with the 120 paper. Late last night I ordered a roll of this :
http://generalphoto.biz/page/7
Compard/Agfa Belgium Surveillance film 400 asa. NP. works out to about a buck and a half a roll (24 exp 126 format) including shipping. I think the APX100 is a similar film. This is supposedly more sensitive into the red. They said it is similar to Rollei retro400s.
BTW the customer service was terrific.
while i wait for the film I'm going to figure out the details on a perforating jig/work station.
I'll probably use the 120 method to make up some color rolls. e6 etc...