I wasn't convinced by my measurements so I printed out a 24+19/32" scale fretboard template (
https://www.ekips.org/tools/guitar/fretfind2d/).
It didn't match.
I thought my printer was off, maybe it wasn't calibrated correctly, so I used my caliper (recently bought one for my own build) to see whether or not the fret spacing on my template was off. It wasn't.
I then printed a 24.5" scale template, caliper matched fret spacing again. I aligned it with my fretboard and lo and behold, it matched.
I correct myself, the 594 scale length is actually 24.5".