Hello there. The mortise lock looks like our 82-218, which works with handle sets that have 3-15/16" hole spacing. Therefore, I believe either our 82-086 or 82-030B Keyed Handle Sets should work for you. Both of these have that same hole spacing and have keyways in the offset position. See what you think.
Awesome, thanks for the order! It means a lot.
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Are you referring to the tail on the new key lock? If so, these are designed to be extra long so that you can cut them down to the appropriate size. If your old key lock worked without issue, then I recommend cutting the new tail so that it's the same size. No reason to mess with success.
