Possibly trading for a '65 Barracuda

The early Barracudas, '64, '65 & '66, are very affordable but are just as costly to fix as any other car, so it is wise to buy the best one you can get.
I think your four door is more valuable then the Barracuda by a wide margin, because it has too many needs ( figure it'll take twice as much money and four times longer than you think).
I think you should keep your car or look for a nicer Barracuda.