For the GB runner:This is a very cool design, and great pcb pricing.
I understand that time is money and as such the 3d printed cases are on the pricey side, however if you really want to the get the number of sales that this project deserves, simply throw the case files up on the site/Github to help out the people the would really love to get involved in this project, and can't afford $40 for a case.
For buyers:You can find the case files here if you want to produce your own case
https://github.com/seirin-blu/Suffer-MFR2