Hi,
My compliments for your undertaking!
It's true that lab testing costs an arm and a leg, but is it really necessary to do all these tests? I don't even think that the Minimig has been put through the barrage of EMC tests applicable to electronic appliances. From my experience in electronics R&D, it appears taht it will fail most if not all emission and immunity tests because it has no filtering and very minimal ESD protection.
Are you after CE marking? But then, would it be necessary since you are selling a component part, rather than a finished product? Please do check out CE marking documentatioan and regulations. It might turn out that some tests are not even required!
http://www.ce-marking.org/As for fire testing, maybe you could skip those if you can prove that you are injecting with fire retarding plastic (UL-94-V0).
Good luck and keep up the great work! Do we get to see more photos now?

Cheers!
Edwin