Hey mate, I just shaped and glassed one for my son. Depending on where you live (I'm in Sydney), there is a company called Surfblanks
surfblanksaustralia.com/ that will cut blanks based on an AKU file OR sell pre-cut blanks based on their own shapes. There are a lot of dudes with shaping machines these days.
I didn't want to wait the 2 weeks it takes to get one cut so bought a 'fish' style pre-cut blank and shaped it from that based on an AKU file I made. AKU is a program for designing boards
www.akushaper.com/ you can get a 2 week free trial. Even if you don't get it machine cut the software is a good way to work out what you want.
I made some cardboard templates from my own Mini and went from there. It was probably more work than starting with an un-cut blank in some ways.
The finished board came out pretty well and he is stoked on it. The mini simmonds website link above is a great place to start and has some AKU files on it (I think).