Quick update tip: I went almost a year without machining out the bottom of the back sight to allow the bolt to be removed for cleaning without taking the scope off. If I did one again I would add it to the list of steps when modifying the rear sight. It needs to be done. After reading into it a bit more, looks like the theory on the scope holding zero even after being removed and re installed was not that good in actual practice. Even if it doesn't move it's still a trust thing, did it stay? Even then, the constant on off has to wear on things eventually.
Also on the pad screws, the ones I used are coated. The coating will come off if they are submerged in muriatic acid for a bit. Then they can be blued. I tried to remove my screws to do this recently and let me tell you, the bearing retaining compound I used is second to welding the screws in. After almost 1,000 rounds they would have to have the compound melted out so I left them be.