You would need a sterile room with negative air pressure, an industrial lab hood, the container, the gloves, the autoclave, the tools, the scale, know how to verify the scale, how to verify the tools, etc etc to make sure you were actually sterile. In the lab I ran we got a hit of Gram Negative - Pseudomonas aeruginosa which is what we were testing for. HOWEVER it turned out it was in the filtered water supply. You are taking a lot of risk by trying to do this. Even though grey is a risk, it is very likely NOT as much of a risk as your home. You don't have weekly pest control, daily sanitation, you're not going to have sticky floor mats and or a foot bath. Let alone the copious amounts of benzo alcohol that are used to wipe things down. I had veteran SME Microbiologists working in the lab and mistakes were still made. It happens, except they know when they happen and can course correct. Also they were working under USP standards. Do you know USP? GMP? How is your lab technique? Not saying this to hurt you but those standards exist for reasons beyond 'certification'.
I would highly encourage you to do a LOT more research before you go any further and hope that you will not pursue this course of action. Just think about the risk of grey and reconstitution...now you're taking that risk and multiplying by factors in the thousands.