Don't get to thinking you'll buy one and "get it out of your system". These were the cars I lusted after during hight school and college. There was 1 GN and 2 t-types in my town, and my eye was always peeled. I knew where 3 t-types and 2 GN's were when I went to college, and I'd drive miles out of my way just to drive by and ogle them. Last summer, I decided to buy one, own it for 6 months to get it out of my system, then sell it. I determined I'd just fix it up to stock with standard mods. I've had it a year and a half. I just hit 12's, and I've got the bug bad enough I want 10's. I quite simply no longer can think about parting with it. I frequently run into guys that "used to" own them, and they are all over the car, and every one laments selling it/having to sell it/wrecking it.
So prepare yourself before you go there. There IS no return....