I have a 2 axis (x and y) hot wire foam cutting machnine I built. Works well but I want to go up a step.

I would like to build a 3 axis (x, y and Z) router so I can make fuse and wing moulds.

What do I need?

1) a machine (which I will build myself). Any good plans out there? Wings are up to 2m in length
2) a driver board. What do I buy?
3) software to drive it. What do I buy?
4) autocad (or similar) to make the models
5) software to 'convert' the .dfx files to a format the driver software needs?

Anything else?

I don't know what is involved, any info would be great.

Thanks, Neal