Just to give you an idea, I purchased a used 088 last summer for 750 bucks, the guy had it in pawn. It started it and it ran strong but I could not test in the parking lot (no more wooden vehicles these days).
When I got it home it had 150 psi and the jug looked decent. The clutch cover was cracked and missing the outside side plate and had a few screws stripped. A new plate, helicoil, and some small parts where the chain was thrown and she runs my mill, 900 bucks total. Had a newer 36" stihl bar and a 36" rsc chain on it. The chain brake was also broke so I removed it, not needed on a mill and if runnin one this big you better pay attention anyway.
I had been scouring craigslist for months when I found this locally, dude was asking 875 and needed the money, so I was able to haggle a bit.
Good luck, hope that helps. PS, I was as nervous as a call girl in church not being able to better evaluate that saw before I paid for it and I knew that I wasn't getting my money back because the dude that sold it to me was a monster, with big monster sized friends and prolly packin'.:msp_ohmy::msp_ohmy::msp_ohmy::msp_ohmy: