I agree, JimH, Reid is a great company to deal with (usual disclaimers...). And thinking about it, their "lift-to-adjust-the-lock-position" lever handles might be something to look at for this application. I used a couple of those on something I built and like them a lot.
Try to make a living, not a killing. -- Utah Phillips
Don't believe everything you know. -- Bumper sticker
Everybody is ignorant, only on different subjects. -- Will Rogers
Law of Logical Argument - Anything is possible if you don't know what you are talking about.