Ordered a print of the chassis, lid and drum. All printed in ABS with 20% infill. 

Unfortunately the front wheel blocks were preventing the wheels from moving, the wheels are also quite difficult to fit into the chassis, I've widened them for V2.1. 

After butchering the V2 chassis I've managed to get the drive working.

I had to remove the front block for the wheel arches (clumsilly with rusty clippers).

The motor mounts also broke immediatly after putting the motors in, they still function fine with the zip ties, but the sides cracked off. These could potentially be printed seperatly with a less brittle material.

The weapon motor and ESC should be arriving tomorrow, so I'll update with progress when I get my hands on the parts.