There are 2 types of Weaver 330 scopes: those with click adjustments (330C), & those with screw adjustments (330S). While there is documentation that 330C scopes were used on the earliest 1903A4 rifles, it is unlikely any 330S scopes were used. (Most soldiers didn't have a screwdriver.) It is also likely that few, if any, USGI issued 330 scopes survived WW2, &, if so, they would be in poor condition. 330 scopes were sold commercially from before WW2 to the 1950's.

Several variation of M73B1 scopes, as well as the M8 scope, were issued later in WW2. While some 330C scopes theoretically may have had some M73B1 markings hand engraved, any basement tinker could have marked any given scope. So, your scope is now, & will always be, a 330 scope. Still, some novice collector who doesn't know the difference might pay a lot more than the $50 I would pay for one, in the belief that the markings make it as good as a real M73B1 scope.

I agree that your rifle requires too many expensive parts & too much expensive labor, &, at best, it would still only be a mixed parts mongrel worth only a little more than it is now worth.