Hi Brian:
I "do" like what you have to say and the only thing about the wheel size I'm hesitant about is the aesthetics. My wife loves the look, but I'm wondering if they may be a bit too "in your face". I'm sorry I don't have the wheel mounted to show you. The black strip is Dip-It, a rubber compound that matches the texture of the tire and if I have the wheel's lip highly polished, it will certainly be unique.
The car will be for show and the trend has been moving consistently toward larger wheels, so by the time the car i ready, it may not be an issue. Oversized wheels I thought looked ridiculous a few years ago, look pretty good to me now, so time will tell.
The rear wheel adaptors are installed, but the car's on jacks in the garage so the wheel hangs a bit, but here's shots with each of the options installed . I'm cleaning and painting the engine compartment, glassing the side vents and shaping the body at the moment, so pardon the mess.
As on yours, it's the fronts that will be tricky. Adaptors won't work because the center of the wheel needs to be as close to the rotational centerline as possible. And unless someone can identify a compatible hub for me, I'll be having one milled from 7075T6 aluminum. That'll be expensive, but the wheels and 4 tires cost me well under $500, so I'll still be ahead.
I'll need to get smaller front tires and, it looks like I'll have to get the wheels polished, so I may not end up with a bargain, but 5 studs will allow me to add larger brakes, have a larger selection of (and less expensive) future wheel options and set my mind at ease... Having lost a right front wheel from a 4 stud Triumph has made me a believer in overkill.