Regarding mounting sights: If you have done dovetail work and/or know what it takes to keep it straight, level, and uniform side to side they are OK. Remember, it is almost impossible to fix a botched job. Dovetails can be done, just a word of caution.
Screw on sights such as the Williams WGOS and their ramp fronts will need 3 holes D/T and if you use a bead front consider the small dia. gold (Ive no experience with the firesight type). If you use the ramp front and the BC type peep you only need to D/T one hole. Again, the holes need to be straight and level. You dont do this with a hand drill in a vise.
My point is, that whichever mounting method you use, if it is crooked when you look down the barrel you are going to see this everytime you shoot it, and it is not going to make you happy.
My eyes are not unlike yours, and I have taken to low power scopes of late (old Weaver K-2.5 and K-3) with satisfaction. I still have some open sight and peep sight equiped rifles to play with, and some days do well with, but in the real, serious world of hunting (clean kill) I think the scope is wise.