It sounds like a pretty good price if the post deer-hit repairs were done properly, the total mileage is good for the model year of the car, and the color of the car is acceptable to you and the timing chain, guide rails and tensioner have been replaced, and there is no rust anywhere.
These are "gentleman's sports cars", more of a grand tourer than a canyon carver, if you know what I mean. Many wafted from Beverly Hills to the Palm Springs Tennis club, were 2nd 3rd or 4th cars of the owners, and were found in abundance in B.H., Hollywood, the Hamptons, West Palm Beach....almost a (required) fashion accessory for the rich/famous in their time.
They never really had any awful problems, and you are looking at the last year (1989) of a VERY long production run, (1972-1989) which is a VERY long model run for any car, so its VERY unlikely you will be getting a car with problems to sort out. Try to get all the service records and books to come with the car, make sure it tracks straight and true, take it through a car wash with the hardtop on to be sure there are no leaks, and the jack, tool kit and spare is in place, and the air conditioning is cold
They are not lightweights, (called panzerwagens for a good reason) they weigh in at about 3670 lbs, 0-60 is in about 7.5 seconds, 227 hp, and they ask for premium unleaded, and drink a lot of it, but after those diesels, you'll love the zip and you'll have an instant classic (see John Olson's
www.slmarket.com) that you'll be able to keep FOREVER.
Parts are not always cheap, but REAL easy to find.
Whether seen in the movies, j like "Beverly Hills Cop", or "American Gigolo", or in real life, the R107 model has always been a hit, and they look just wonderful in most colors, you can't lose with "SIGNAL ROT"
Definately worth pursuing! Just be sure the one you are looking at is a good example without problems
Jim