trade my mopar for a pontiac??!!!

Well I am considering maybe trading my 69 barracuda for a 78 pontiac macho t/a. The car is #159 of 204 has 70,000 miles and is real real clean car. Has 400 with th400, factory t-tops factory a/c, car is all original with all the factory documents. I really like my barracuda, but Im thinking this car might be worth much more than my barracuda. Anybody here have any experiance with a macho TAs? Cant find much on values of these cars.
And if I do trade do I have to grow a mullet and wear a wife beater?:supz:

Here's some info:

http://www.hemmings.com/mus/stories/2008/10/01/hmn_feature8.html