You have a M38 Carcano made by Terni, chambered in 7.35 it saw service in Finland's military (SA) stamp.
You need a stock, hand guard, band w/screw and nose cap w/2 screws.
It may be more cost effective to find a donor rifle for the needed parts. Under $100 for a rusty rifle.
The Carcano is still a very low cost rifle. The bayonets can cost 3X's what the rifle does.