Harry,
I guess I am ahead of Steve Fotu, because I am already an engineer and have been for the last +20 years (prior to that a toolmaker for 10 years).
smile LOL smile
I have no illusions and will only built one action. Someday the grandkids will own it and the others. I certainly can share any design points I try.

I never did like Colt's design because they narrowed the sides which I thought took away from Mr Borchardt's design.

I would be interested in knowing more about what Lozito-Wolf did to retain the BB and lever in the closed position?
My design is basically an internal spring which applies pressure to what you think would try to force the breech block down but in fact because the lever and link are just a tiny bit over center the spring force causes the lever to be pulled up and tight to the closed position.