The tires are flat on top, well near top... give those donuts some air.
Nice appearing bike, the off color fork screams replacement. Or a colorblind repaint.
The unexpected fork needs to be accounted for and images to verify the frame is not bent.
Probably 27" wheels, will probably require different brakes to fit 700c, there is some adjustment left, but not much.
$300 is my best guess.
Tall guys are cheap.