Trading my restored 1981 Camaro Z28 for a beaten-up 1969 Camaro SS.?

Yesterday one of my dads old friends who owns a wreaking yard asked me if i want to trade my 1981 Camaro Z28 that has been built to the bone for a 1969 Camaro SS that is in ok shape I have already seen it. Its in about the same shape that my 1981 was when I first got it.

My 1981 Camaro has a 435hp 350ci engine that cost me if i look at my sale records $2365.87 in total to build. Then the paint is a dark metallic red and the paint and all the materials in total cost me $951.73 in total to do the body work with the paint came around $1000. I have a Hotchkis Sport Suspension TVS system Part No. 80017 with Edelbrock Performer Shocks that cost my in total $1,658.67. That car sits on a set of 15inch American Racing TTD that came to $926.34 for the whole set with BF Goodrich Radial T/As that came up to about $100 a tire i don't have the sales record on that. Then i rebuilt the Turbo 400 and replaced the brake pads for cheap **** all. In total the car came up to about $6000 to build.

Do you think i should trade my tricked out 81 Camaro Z28 for a 1969 Camaro SS thats in ok yet kind of in sad shape that i know is fixable. The 69 Camaro also dose not have an engine in it but i have a 454 in my back yard that i was saving for a if i ever get a 1970 Chevelle but i think it would love to find a home in a 69 Camaro. Also i already have a 1971 V8 Vega Wagon Project on the go so i won't be able to start working on it right away. I'm also helping a friend build a 1979 Camaro Z28 to the same specs I did mine. Do you think this would cause an car building over load. I need some opinions on this.