arty sight

Have followed this forum a few days-could use some help.

I have had a real nice 1917 DWM Artillery for a long time which is missing the rear sight.-It had a fine-tune type as the front sight has a adj. screw(also ruined by some fool)

I have found a fine tune rear sight which is a little rough-need to know who might be able to finish this-not trying to fake a gun-just want to make it presentable. I have "fooled" with Lugers and other military pieces off and on for many years-remember when drums were $20 and $50 would get you a mint original rig. $20 and $50 were a lot of money then, though.