Probably your best bet. I've worked at Midas and Meineke. Go for the aluminized pipe. I just cut down the system I installed on my Bee back in '87. The pipes were still solid! A custom dual system was $350 back then. I paid $25 for Walker turbos and 3 sticks of aluminized 2-1/2" pipe. Didn't have a bender available this time so I went with the TTI.
Bring new hangers with you. You will not like what they have. Mufflers too-