is there any chance the MG could be available separately and in large numbers?
resin or metal?
There will be enough MGs and hatches with the models to model at least seven machine gun positions open or closed. I don't have any plans to sell them separately as yet.
The model will be resin, although the caster may end up doing the wheels in metal. Depends upon what he decides would be the best approach.
It's a slightly more complex model than the Euzkadi, but still pretty straightforward.