Read Thread: Inventing a board game
A good friend of mine did this. I will private message you her information. She could probably answer your questions. Tell her "Rosemary" recommended her (not "Rosmarinus"-) she doesn't know about letterboxing!
I could message him, but that would take the fun out of it ;) Congrats and good luck with the game!
LOVE THIS! Pm'ing you shortly.
There is a new podcast for board game design. It is called Cardboard Addiction.