Vroom Vroom, I will be curious to hear what solution you come up with. I am running stock size BFG Radial TA’s on my car. I am happy with all aspects except for traction. With a high torque heavy engine in the front and little weight over the rear tires, traction is always going to be a challenge with these cars.
My tires have only 2,000 miles and are 2 1/2 years old, so I am not in a hurry to spend money on replacements. The car is mostly used for cruising backroads, so it isn’t really a problem for me.
I am still interested in what tire you decide to go with and if you are happy with the results.