403 handbrake rear fork rubber boot

[mikebro]

Had no idea this was going to be so difficult! Bristol cars don't stock them despite the fact that 400/401/402/403 all use the same part. I can't find anything generic on t'internet. Does anyone know a source or know of another make/model of car that uses something the same or very simular? It needs to be a rubber bellows about 100mm long, 40mm dia and the holes at each end about 12 mm diameter.

Thanks in anticipation

Mike