advice sought on a B+L 88mm f/6.8 WF 1609 lens

Purchased it for not much money but it came in a graphex shutter which has been partially and inexpertly disassembled. How difficult would it be to find a replacement shutter, either graphex or a modern one and transfer the lens elements. Lens itself is clean but probably not coated and came with a recessed lens board.. It's no super angulon but it might be fun to use.

David