Guys,
Another problem that I encountered in building this gun was the position of the rear sight. As the barrel was a "recycled" original one, the rear sight dovetail was already cut so the rear sight location was fixed already. The result was that the position of the rear sight is just about at the balance point of the gun. We should try to avoid this because when carrying a gun with the rear sight at the balance point, the sharp edges can be quite a bother on the hand. When building a gun just looking at pictures, we don't get a true feel of how the gun balances in the hand, but when we carry a gun that is well balanced - it is a joy; when we carry a gun that is ill balanced - it is a chore.
Advice: When making a gun wait until the gun is almost completely finished before cutting the dovetail for the rear sight. Earlier in the building process, we cannot tell exactly where the balance point will be. Carry the gun with your hand at he balance point, then locate the rear sight a bit toward the muzzle from your hand. Now when you carry the gun on a long trek you will not have the problem of the rear sight irritating your hand. It is OK to locate the rear sight even more towards the muzzle than just to miss the balance point, if you do not have presbyopia now, you will later.
Jim