Alphax Shutter for Polaroid Big Shot

[Katmandaddy]

Yes I know. I've been cautioned and chastised in other groups but I want to build an instant camera to use my stockpiled Fuji 100 utilizing the body of an old broken Polaroid Big Shot and my (currently barrel mounted) Wollensak 190mm Raptar ƒ4.5 lens. I have mocked it up with blue tape and it works wonderfully and incorporates the focusing two step with the camera's built in viewfinder. I DO NOT want to by a different, or better, or smaller lens. I'd like to use pieces I already have.
But I do need a shutter. I have been told its a Alphax No. 3, and also a No. 4 but even with the catalog posted by Camera Eccentric and info at lensn2shutter.com I really can't tell. I don't want to drop a bunch of money on something that won't fit. I really don't want to drop a bunch of money at all. The outside of the mounting threads measure 2 3/32 inches with my H. Freight plastic calipers.
Could someone help me and share your wealth of experience by telling me if there is a shutter, of any age, I can drop the lens elements into with out any hassle. Or, barring that, with minimal hassle - and what precisely that hassle might be.
Yes it will be big and awkward but that is kind of the point for this fun project and I've already built a tripod mount onto the long snoot,
Thanks for any help you can give, Pete
r

 

[Rick A]

How do you propose to get that to work, even if you get a shutter mounted? The Big Shot was fixed close focus and you needed to do the "Big Shot Shuffle" to get the subject in focus.

 

[Katmandaddy]

By mounting it at the correct distance where the "shuffle" will still work. I've already gotten it to work using the lens mounted in it's barrel using foamcore and lots of blue tape. My minimal woodworking and fabricating skills are quite sufficient for this.