My advice is to find another plane. This is guy is trying to get his dream price (been there) and in no hurry to sell. By the time this guy see's reality (and that may be never) and reduces his price, you will have bought a different airplane. Use your time with realistic vendors and flush out everything close to home before you go far and wide.
When I bought my plane I searched everywhere and eventually bought the one I first looked at my local airport. It wasn't perfect (but a good solid airplane) I put a litte money into the 150 after I bought it (staying in my budget) to get the Ad's (I negotiated on these points) up to snuff. With a plan for improvements over time.
Don't get bogged down analyzing all the 150''s out there, if possible try to find 3 close to home with realistic pricing, check them out, research those models then negotiate. The advantage of local airplanes is that people know them and your is mechanic is close by to advise you.
Hope this helps,
Rock Whitney
71-150L
