As I'm in the thick of this full resto right now, its a very interesting question. But, as I'm interested in driving the car, often, I'll be leaning towards upgrading internals, while maintaining factory period appearances. If there were brand new window regulators that looked stock but had teflon coated gears and non-flexing spans, I'd do it. Its why I've hemmed and hawed over motor internals so long (still no decision). Roller makes sense for modern convenience and won't look any different once in there. But I'll know, and those with an understanding of the engine audio will know too. It's why I've removed carpet underlayer only from the side with rust, but not the pass side. For now. It's funny with these classic cars that my limited budget will also prevent me from returning some personalized items (motor, steering wheel, wheels, air cleaner, etc) back to stock. That's usually in reverse with later model cars. lol.
So, I've checked Personalized.
Derek
