Might get in the ballpark if you had a known good one you could check against with a degree wheel in a lathe or something that would spin the balancer accurately so you could check offset from key to TDC mark.
It really isn't hard to find TDC with a piston stop. I think I did it without removing the timing cover with a wheel I printed out and taped to a hunk of plastic. Aluminum or steel sheet would have been better. Made my own hub.