531c Interesting paintwork

[Smigg]

Hello all, my first real post other than buying. This is my first full retro-ish road bike build

Ribble bike - 531c steel - lovely paint work
Campagnolo 9 speed mirage everything
(other than headset, brakes and seatpost)
Nothing too fancy on the bike

sell, keep gift to a friend? Not sure what to do with it

If selling what sort of price do you guys think this would bring? It's in really good condition overall

Thanks all