88 535is..220k..has records. New Clutch, shocks, springs, bushings and more; interior clean, paint good with minor scratches. All amenities work except headrests(sounds common)...rims have been changed to non-TRX. Wants $4500. The questions: is 220K still got a lot of life left in it? What should a good compression result be for this engine? What kind of annual maintenance costs have you guys experienced(I have had Audis, so I am used to higher costs...) Can I use this everyday? Any other answers/opinions welcome.....thanks....