It seems like a lot of M-codes came with rears only. My M-code GTS only has rears.
Interesting about the number 63 on the inner fenders. I wonder if the GTS had the same, my GTS is unrestored but I’ve never looked for that.
I’m not Randy but I know him and sold him some parts when I still lived in Edmonton. Very nice guy and super skilled at building cars but life can sidetrack you (for the best!), so the build seems to be on hold temporarily.