How nice is his 2100? I'd do it if it was a nice saw - they have a big following. Back when saw makers made 3/4/5/6 cube saws. Sizing nowadays seems odd and random.
I paid 220 for mine...I don't use it, was thinking on having it built into a race saw. It's fairly low hours...might bring $300 on ebay. Great saws, gobs of torque. But parts are getting hard to find. Sold my first one that got lots of use when I got my 3120.