is a 143k mile m3 worth 14k?

I've been on the search fot a e46 m3 for a while now and recently came across one with 143k miles for 14k, according to the add its had 1 owner and 0 accidents. I'm simply wondering
1. is 14k a fair price
2.how many more miles will it last before its due for a rebuild

any input is much appreciated

is a 143k mile m3 worth 14k?