Here are some more shots of the components of the bastion (so far).  I’ve been thinking about making a different back panel which has a door to enter the base and I’m thinking of adding some more texture/detail to the roof (right now i just have 2 hatches and some skid pads. Also, I want to add some guidelines for the weapon’s balconies/emplacements then I will be ready to go.

The bottom picture shows the detail of the slot on the back of each piece that the roof slides into to build the model.

It looks like the base model is costing about $75 to have printed - I might be able to optimize the model a bit - but I think I’m just going to use a print to make a silicone mold and cast using resin* or dental plaster.

*I really need to get a pressure chamber for casting high quality resin.

The dimensions: about 70mm wide at the base. about 85mm tall at the tip and the roof is large enough to accommodate about 3 long strip bases (about 45 mm).