You need a 405 Polaroid holder. Do you have a Graflok back or a spring back? IIRC the thicker holders have a rough time going on a spring back. I converted mine to a Graflok.
I've got two I was going to get rid of, but I am not sure how to price them. They seem to have shot up in value on the bay recently. If you came into a lot then it is worth getting a holder. If you only have a pack or two it probably isn't worth it.
Can you take a photo of the Fuji film in question, I might have a back that will work....
The photos you took of barbershop in downtown Winnipeg are nothing short of Fantastic!!
Used to live in St. James and would go to downtown to get my hair cut...old school.