Mark, it's not going to look any more like a Gremlin than Pininfarina felt it should

The only external cues will be those fender flares, and they're not going to be overt. I think they'll suit the shape of the car much better than the factory "Sebring" blobs did.
I'm planning to change out the rear lights to the older style and shave off all those ugly side markers. I haven't decided which grille to use yet - I'm using the original red badge in it, but I think the later black insert looks a bit more aggressive than the original chrome fins. The 1972 "fishmouth" grille it came with is definitely gone. Yes, that's all MG nerd stuff but the details make a big difference.
This wasn't a pristine, gorgeous car when I got it. It's been repainted twice in different colors and the interior was spray-painted. It had major electrical problems, a frozen rear suspension, wheels that didn't clear the body and a number of other problems. The best thing about it is that the body is pretty clean. But I didn't hack up someone's precious jewel here. The car's been resurrected instead of defiled. As an added bonus, the clean sheetmetal I cut out of the rear arches can be used to fix the rust on my extra GT.
I'm going to do my best to do this right. It's not my first build - my Locost (Lotus 7 replica) won a test of Locosts in Car and Driver, and Grassroots Motorsports said it was more fun to drive than a supercharged Ariel Atom. I've used that car to set a few lap records. I also built a rally Miata that ran in the Targa Newfoundland, and I really enjoy setting up suspension. So this car will definitely get sorted out properly. I've already changed the spring rates on it from the first couple of drives as I work it out.
Anyhow, enough justification. I'll let the results speak for themselves as I work.
It's making somewhere between 350 and 400 hp with the slightly modified engine, and the car sits right around 2200 lbs. It's going to be fun.