RepRap i3 with updated head for flexible plastics + wood polymer, and the purpose build electronics (power supply, stepper drivers and processor). Also has the heated bed so can do both ABS and PLA, ordered 1kg of each in white (I've been told it makes the strongest prints due to some dyes weakening the plastics)
Pretty excited to get stuck into 3d printing, I've done a fair bit of CNC milling so the software shouldn't be that hard to get familiar with.
I'll go with the ABS for the enclosures, and acetone vapor polish them to give them a hard glossy outter shell. Seems like it should be more than rugged enough for its purpose. I can always resin fill like I do the Lego Linkers if strength is an issue.