Not to say anything negative about the Bader, I never would, Bader makes a good grinder, but I bought a variable speed Hard-Core grinder from Tru-Grit earlier this year with a 10 inch wheel for less money than a comparably equipped Bader cost. Give them a call and ask for pricing, you will be surprised.
Small wheel grinder? Although Hard-Core (and Bader) offer one, I made one with a 1725 rpm bench grinder and an idler wheel. I placed a 2 1/2 inch length of heater hose over the shaft of the grinder and presto! Instant small wheel grinder with a 2X48 inch belt. I can post a picture if you folks want.
All of the attachments are nice but I have found that it is much easier in the shop not to constantly be changing setups on your grinder(s). I also bought the flat platen assy for the Hard-Core but change out of accessories (on any machine) is time comsuming and after a while, isn't worth the effort. If you only have one machine then you may be forced to do this but even with minimum effort I was able to have a comparable setup with what I already have in the shop.
C Wilkins