Option 2: Does anyone know of any other (generic or otherwise) brand of collar that has a similar broad and more importantly parallel surface area as the one pictured? (I'm dreading that trawl through eBay where I have to select view 250 option per page...)
I know a man who could, but it's a simple job which anybody with a milling machine equipped with a boring head (or a lathe with a 4-jay chuck and a boring bar) can do.
Option 1: Could someone bore this out for me?
Option 2: Does anyone know of any other (generic or otherwise) brand of collar that has a similar broad and more importantly parallel surface area as the one pictured? (I'm dreading that trawl through eBay where I have to select view 250 option per page...)