Find the cleanest lowest mileage used one possible, lowish miles DOESN'T mean clean.
As a current lube tech, I've seen cars with 30k or 50k or 70k miles that are somehow BEAT, cosmetically.

__________________
1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.