Factory bucket seat track height

Trying to put aftermarket bucket seats in my 69 Valiant.
I bought a set of repop super stock seat brackets but the seat is to high as I’m 6 2ft. So I’m going to make my own brackets.
I had previous bucket seat A body and they fit fine. So I figured that height of seat track will work. Anybody have a measurement?
Photo shows bracket reversed as I was trying different positions.