I don't, but, the Business of selling retro cases prepared to hold modern parts sounds much more interesting.
I highly doubt that I could DImyself a case replica. Specially the keyboard part.
There are a lot of business, DIY and marketing experts on Amiga.org. They can do it all cheaper, better, faster and have 100k units ready at the drop of a hat.
We're definitely not in the same category as these arm-chair business super-stars