personally all my wheel builds have been low flange, even my
pista hubs ( old Record hubs for the pog).
In terms of build difficulty there is no difference.
I'd go for Nuovo Record (or Super if you can get em) hubs,
DT 14/15 ga spokes, and a nice Mavic Gel330 or GP4 rim. If an
italian build maybe Nisi or Martano rims (but they can get quite spendy).
If you need to borrow a truing stand let me know.
oh yeah, I use spocalc it's perfect for older hubs/rims but doesn't have
alot of the new hubs/rims. if you want a copy let me know I can send it
to you.

Marty