The limitation would likely be the mounting hardware as it may not work for head size over 90". And the clamps could be very slow but you may be able to get different ones?
I just got a Serrano and love it but it has upgraded mounts and clamps so it will work for modern frames.
So this could be worth it if fully functional and if it will mount modern size frames.
3 Head PT57a 12.4 oz. 9 pts HL. 1HBH. Pair of PT167a for the wife.