I will keep an eye out for one of these local to Denver. Echo saws don't bring much money at all used here... I learned that on a big one that I had, a CS-680. It was a good, torquey saw, but an old Husky 162 with a base gasket delete would outrun and out-cut it by a little, so the first buyer bought the Husky. The guy who bought the Echo really wanted it, but I didn't get much for it.
Looks like these saws have a ton of potential when ported and aren't bad stock... a little outdated but can be made to really run.