bear claws with original handles

[skip99]

I've looked at all I can find using search, and can't find what I need, (it may not have been done yet)

Has anyone installed small bear claw latches, using either pushbutton or turn down handles AND used the original interior open and lock mechanism?
kinda like this guy did, but he didnt use the lock part of the original handle.

I would use either exterior type (pushbutton, most likely..because it can be locked at the button.

and on the inside handle I want to be able to pull up to lock, down to open or viceversa, ( switch the mechanisms pass. to dr. side or turn them upside down, what ever works.

I think the trick is figuring out a linkage system at the bear claw...