My 14" Beaver Bandsaw (Callander Foundry, Guelph, 1940's) needs new tires. The old ones have a slight crown (23mm wide x 4.5mm edge to 5.5mm ctr). What do I replace them with... what manufacturer?

The saw works well, but is missing the rip fence, 3 rip fence support rods, mitre fence, and trammel bars. Does anyone know where I could find these?

There is no serial no. or model no. on the trademark name plate, but interestingly I found BS3300 stamped on the inside upper & lower covers, and 0088SJ on the inside center cover. Is this the serial no.? Would it indicate that my saw is number 88? Thanks for your help, Woodlace Sheila.