89 300e to buy or not to buy

[mtmacklin]

looking at a black 300e the body is in great cond. no rust no dings winsheild has a crack a dealer is selling asking for 2200$ (he got it at a auction) here's the kicker no service records and 317,000 miles he says every thing works and it runs like new (will test drive tomorrow some one left the keys at home) should i even consider this car im also looking at a bmw 635csi with 175,000 im not really a 2 door guy but this bimmer (im not a bmw guy eithier LOL) is in nice shape and has recent head and valve work reciepts the mechanic who did the work is selling for 1200 no rust a couple dings here and there.?????????????????????? thanks guys any replies apriciated