I think an electric one would be quality. When doing a project like this, making an old car look new, why not add in modern touches too? The seats are out of a new car and no one will moan about those im sure, I dont see why wou shouldnt put in a sunroof from a newer car too! I say go for it! Your the one who's doin the work and goin to be sayin, yeah, thats my car, so as long as you can do that and be happy then thats all that matters!