Cal, I looked at your Jensen factory style exhaust and it looks like you have zero room to play under it. I'd be sure it has the OEM mufflers (2" in and out I think??) and the factory resonators at the end and not just empty cans. I am sure there are some round mufflers that might fit (like those used on the Turbo FWD mopars in the 80s and 90s) but I can't tell about length or diameter of the originals from the photos I found.
Thanks again, the current exhaust is non factory in stainless steel with resonators that need to be replaced to give a more factory appearance. I’ll aim to get some pics to upload during the week. Really appreciate your help!