Steven, I think I may just use both cylinders and drop the cable setup. If I use it, I'd have to "spring load" the front lift bellcrank in the down position to keep tension on the cable when I don't have a mower deck on it. I don't think I'm gonna want to have something like that up front near the drive belt. If it broke, I'd have a bit of a mess... The only thing I'm wondering is if I use only one lift valve, would I blow the plunger seals in a cylinder if they get out of sync...

Anyway, it's still coming along, but it's SLOW. I got the lower cylinder mount finished tonight, and welded it to the lower "hitch". The toolbox (with the upper pivot mounts for the lift arm shaft) and the top link mount is all that's left to finish up. I hope to have them done this weekend. So far, it's all bolt on. The only mod to the tractor is gonna be the rear fender. I got a spare, so that'll be OK.
I'm out of practice too with my welding. There are a few Pterodactyl turds on it to clean up...
Kevin