Is this car worth 8000

I drove to Michigan to look at a 1991 tube chassis Daytona that was listed for if I remember right 15,500. I was pretty much positive I was buying the car so I took a 11,500 certified check and the rest cash. Loved the car and extras so we agreed on 15,000. Well the bank wanted to put a hold of three days on the check so you know how that went. I’m 300 miles from home and the car is going to Norwalk two days later to Monster Mopar to sell. So chooses had to be made. I got a cash advance on my credit card and they handed him the cash. That cost me around 450.00 but saved me from Driving 300 miles home and 600 miles the next day. That was the last time I used a certified or cashier check. I was super glad I had a credit card with a high line of credit.