1967 K10 Fleetside Longbed

[67mater]

I've always loved these 67 small windows and had a few. What's a real deal 1967 small window k10 worth? It was a farm truck so it's had a tough and thankless life but far less rusty than I've seen on many for the Midwest. Rockers and corners could be replaced. It is running and driving BUT it is NOT the original inline 6. It's got the integrated head 250. no visible cracks and doesn't overheat.

I have headlights, bumpers, etc. and the headlights, turn signals work. Needs brake light wiring to be legal.

here are some details
longbed fleetside. wood bed/strips all gone and need replaced
original closed knuckle dana 44
4 wheel manual drum brakes
manual steering
sm420 4 speed

$3,000?