Hi Mary,
I have all of my dies made – that way you know exactly what shape to expect. There are lots of different diemaking companies out there (I use Atlas), just find one near you and call them. They’ll want to know your type height (usually 0.918″) and if you want a crease line, stuff like that. Then you just send them an eps file, the same as you would for Boxcar, and it’s usually done in less than a week.
For your C&P, do you have or need a die jacket? I have a Windmill and it comes with one, but you might want to see if you need one before you get started. Also, when designing the die, it’s good to leave a tiny bit of the die out, so that the paper isn’t falling out of the cut area while it’s still on press! Does that make sense? If not, I can send you a pdf of some dies that I’ve designed so you can see what I mean.
Hope this helps,
Sarah
Shed Letterpress