Making that decision when you are done is a terrible idea. Making the assumption we are talking about an RC model then if you bolt you will need a ply late epoxied in some where near the rear of the wing compartment to drll into and this is going to have a big influence on where the servos/pushrods are situated. You need to make a decision before any internal work and installations are done.

Generally there will be one or two dowells inserted and secured into the leading edge of the wing and two matching holes will be drilled into the leading edge fuselage bulk head. The trailing edge will be drilled through to holes drilled into the epoxied plate and the wood tapped with the appropriate thread.

Something will have to reinforce the trailing edge to prevent the wing bolts from colapesing the trailing edge itself.

Generally anymore almost no one bands warbirds although once common like this big vintage corsair model.

To do that you just need some through dowells front and trailing edge in the fuselage running out both sides.

John