so this is what it will be made of

Body
10mm aluminium plate
10mm HDPE sheet
110mm electrofusion tee

Drive
Gimsons 14.4 v and wheels
Sabretooth speed controller

Weapon
Saw driven by a brushless motor, just sourcing a non hardened blade.
interchangeable
18v drill

both weapons moved by a Gimson actuator (will be ordering soon Ewan, I have asked my wife to get them for my Birthday present

Grabbing self righting claw, driven by another Gimson actuator

Battery
Turnigy 5000mAh 5S 20C Lipo Pack 18v