Anyone out there have any extra brass hinge pins for the M&S 80?

This M&S I'm working on has brass bolts for the long pins instead of the (I beleive) correct brass hinge pins with the cotter pin retainers. My other M&S's have brass hinge pins for both the short sides and the long sides. I suppose Martin & Schwartz could have changed the parts during production (?).

I'm looking for a supplier for new pins or a set of old pins that someone can part with. I need a total of 8 of the long pins only.

Thanks for any assistance!

Later . . .

Jim