Um, if you look on varying websites, there are aftermarket 8 bolt flywheels. All Cobra engines had 8 bolt flywheels as did our 99/2000 GT's. What are you having trouble finding??
I am having trouble finding a flywheel that was not a few days shipping away, because of the time constraints I needed to get the car done before the end of the week for the weekend. Plus I didn't want an aftermarket flywheel. I just spent a lot of money the first time around, in Aug and don't have the money to spend on a $300 plus dollar flywheel.

Clutch work is always expensive... the parts involved aren't always something you can pluck off a shelf. In my experience, cheap flywheel availability rarely comes into play when deciding what car to buy. I think it would be a mistake to sell the car over this issue... these are some of the most reliable cars ever built.