01 van tank/other stuff in '73 C20

[slotard]

Looking at an LQ4/4L80E that's from a crashed 2001 express van (they don't specify what model). They're checking mileage for me. Engine with all accessories, tranny, stock harness, ECU for $1500 which is cheap for here. I can see it run before buying, they'll pull it.

Are there any other parts I should try to get? I was thinking of getting the tank to get fuel pump and sender, but would the tank itself fit?

Oddly enough every source (Napa, OReilly, wikipedia, Edmunds) I'm looking at indicates that the Express van didn't get the LS until the facelift in 2003, and that it would have a Gen1, so they're either horrible at IDing an engine or they have the year wrong or everyone else has the wrong info (unlikely)