Advice between a model 94 or a 336 marlin.

I have the luxury of being in the market for a lever gun, I will be looking at both a 1951 winchester model 94 and 1964 336 marlin. Both in 30-30. The price for both is 599.99 but it’s a pawn shop so there Is probably some wiggle room. Model 94 has been drilled and tapped for a scope which is his reason for the value not being up there.

Question 1. Is it true that drilling and tapping a model 94 would decrease the value or is it that normal price for a model 94?

Question 2. Marlin is not tapped for a scoped is it viable? Its going to be a deer gun and general purpose, ie camping gun and some plinking.