Not what you are looking for, but less expensive exhaust kits are available.
Heartthrob. $200
http://www.jcwhitney.com/dual-exhaus...9d16352y1970j1
with glass packs $185
http://www.jcwhitney.com/dual-exhaus...9d16352y1970j1
Dynomax 89027, amazon has it with free shipping, but its header back $250
http://www.jegs.com/i/Dynomax/289/89027/10002/-1