My first "sniper" rifle

Picked up this 1903A3 from the Show of Shows this past weekend. The seller told me it wasn't all original, so I knew exactly what I was getting. 1943 serial number and September 1943 barrel - looks like a mirror on the inside.

The scope and base are postwar commercial pieces. I think the bolt has been fiddled with as well. My hope is to try to convert the rifle to as close to original condition A4 since I can't afford a real one. Haven't taken it to the range yet, but it looks like it'll make a great shooter, which is what I was looking for.