To my understanding, cast iron isn't a very good metal to build firearms.
I've been told that the value of a "working" rifle like mine should be around $100. Realy not much. Plus I can't be sure of what year it was made ... like I've said before it's said to have benn my g-grand's rifle but, there's nobody still alive that can assert that. So I'm left with a load of "maybe" and a broken rifle.
But it wasn't a matter of $.
After what I've heard here I reconsidered having it complete as I can't have any plan or else to base my repair on even if I didn't intend to use the rifle.
Thanks every one for your lights.