I have been looking into this as well. My thinking is that a recurve, with a cut-in grip and full shelf, wouldn't work with a sleeve. They work for longbows with Hill Style handles/grips.
I have looked at several of the hinge type and hook-latch type. Seems to me that the Bow Bolt System looks the best to me. Doesn't look too tough to install.
I think the hardest part will be the initial "wrongness" of cutting a perfectly good bow in half.
OkKeith