Hello Craig
Well, the BSA was never fitted to these machines anyway.
Your machine presents as a 14" Victa Imperial that was
restored and rebadged using SB decals.
[I don't think Scott Bonnar Morrisons were ever offered in 14"]
[Your machine does look 14" ...?]
Any general engineering works could do that but
the expense would be prohibitive.
Perhaps the cheapest way would be turning a new set of rollers
and putting them on a stainless shaft.
Perhaps members might have some thoughts...
-------------------
Jack