There's lots of grinders out here in circulation. During the heyday, Silvey was churning those things out as fast as they could make them.
As I've posted on the jacks before, one real good way to find cheap grinders is to hit the mills. Many of the mills here have equipment in
storage that they'd gladly get rid of. All you have to do is ask around. There's also many retiring or retired log cutters that have equipment
to sell. Post a wanted ad on Craigslist and you'll get 20-30 calls for grinders in the span of 2/3/4/5 days.
It doesn't take much in the way of smarts to find this stuff and people who complain about it simply aren't trying (because they're too busy complaining.)