Here is a little update, I have actually just about finished this project, just have a few bugs to work out.
This picture shows how far off the L&R lock bolt hole is off from the TC as well as how much I had to grind off the tang to get the lock in the mortise and have it go to full cock.
![](http://img.photobucket.com/albums/v181/ekrewson/projects/c641a71b-deb0-47bc-8234-2842f15667ee_zpsxy7siosm.jpg)
There are a lot of gaps between the "drop in lock" and the mortise.
![](http://img.photobucket.com/albums/v181/ekrewson/projects/402a4c61-301c-4baa-a04b-66ef86d43099_zpstiiw11ny.jpg)
Wood shavings to the rescue;
![](http://img.photobucket.com/albums/v181/ekrewson/projects/7edde118-a138-4d3a-acda-805598f467eb_zpsr6ldhldp.jpg)
Pretty good fill in, the patch will disappear once the finish is on the wood.
![](http://img.photobucket.com/albums/v181/ekrewson/projects/956f92a6-6632-48cc-a12e-aeec061311ec_zps2lh8wo8f.jpg)
I did a mock-up and most everything works, I had to remove a little more metal from the tang to get the lock to full cock. One more problem to solve; the lock will fire with the triggers set but not with the front trigger alone. Everything looks OK, nothing rubbing, I will solve this problem tomorrow.