Thanks for your replies. Pictures aren't happening for awhile due to house being torn up and half packed! I might be able to scan an old Precision Shooting ad with that top on. The foreend stop is a stud coming straight out from the front of the windage plate, and has a sliding perpendicular piece with a bottom thumb screw and a Delrin (?) top. On the windage knob, the plastic handle broke off the shaft in pieces, so unable to be glued back together. It still works, but is a pita.
I am also looking for the part that holds the aperture of a Redfield Palma sight. Any broken sights out there?