You would spend a lot more that 13K to take another car to this level. If this things looks as good in person as it does in a picture, I would give 13-15K for it in a minute. To take and recondition a motor, trans, and rearend costs a lot more than a lot of people plan on. Between a mild 360 Magnum, a tuff 904 Torqueflite with a 500 dollar converter and manual valve body, and a 742 case sure grip with Richmond 3.91 ring and pinion I have over 7 grand invested in the three items not to mention the paint and body, wiring, brakes etc. etc.By the time I repaint, rewire, reupholster etc. etc. I will have spent well over 13K (which includes the original purchase price of 3500) and it still probably wont look as good as this car. The only real justification I have is that other than the paint, I will have done the car completely myself which means that I know all the work on the car was done right, and after rebuilding everything on the car I know it will be dependable, not be breaking down, and it will be ready to go another 100k miles without a major repair. Most importantly now that I'm older, grey, and fat, I really don't want to work on the car after I have finished it. In the past I found that everytime I wanted to drive the car I had to work on it first and that took a lot of the fun out of it. My idea of fun now is tuning the car for maximum performance and waxing and polishing it before cruises.
There is a lot to be said for buying a turn key car like this one.