Would really love to see more of this guitar -- that's quite a top for a run-of-the-mill Norlin era Standard, especially being 2-piece, center-matched. But the pic you've uploaded has a weird, new, satiny look to it like a recent LP Standard Faded or something along those lines. Could be (and probably is) just a trick of lighting/angle and what we see of the case is era-correct, at least.
How much of a premium do you guys think a top like that (assuming this is legit) puts over the normal 3-7 piece topped Standard or the era?
Well 2 piece top looks better, multi-piece top looks cheap in my opinion.
I wouldn't pay more for it just accounting for the amount of pieces, but if one looks way nicer than the other, your subsconcience might make you pay more for the pretty one anyway