Winchester globe sight help.|Winchester Sights|Forum|Winchester Collector

I recently purchased a Winchester 75 Target rifle that is equipped with a Winchester 105 globe front sight. The aperture insert that came with the rifle is a post. I would like to try a circle aperture insert. According to my research (Jeff’s book) this sight combination should have come from the factory with five (5) inserts. One post and four circle. I’m on the hunt for a circle to try on my rifle. 

This rifle also has Phillip head oval screws in the accessory rail at the front of the stock that should be straight screwdriver slotted screws. I would like to replace these two screws with the proper ones along with the missing sling loop, spacer and screw. If any of you guys would happen to have any of these parts laying around and would consider letting them go, give me a shout. I am interested. Thank you in advance.   RRM