I've been offered a surface grinder

[Sunset Machine]

Standard fare, I think. Looks like the taper on my Boyer-Schultz, but I could double check if you want. Sopko adapters, at $60 each - and you'll need two or three to avoid lots of truing between wheel swaps.

Mine will use 8" wheels but I have 7's mounted because they are/were cheaper. One of them has worn to 6" and still produces a nice finish although I had some burning problems a while back, might be the cause.

Search for "sopko". (Links added - I see that the 8" wheel adapters are $90)

http://www.travers.com/64791-53-111-920?...53-111-920
http://www.travers.com/84648-53-111-968?...53-111-968
http://www.travers.com/84650-53-111-900?...53-111-900