I have a custom "one off" depending on how well it works. to machine a square number plate with raised lettering.

Requirements:

Use a true type font
pocketing not scanning the surface, to give good character definition
small border around the perimeter
Aluminium plate

I'm looking for a recomendation on what packages are suitable to draw up the detail and options for software programming. I would like to do as much as I can myself, but have a few friends that may help but it's their work environment.

Appreciate any help or advice.