https://en.m.wikipedia.org/wiki/Astrobotic_Technology
Would NASA be interested in buying instrument payload slots from Planetary Space Science Corporations like Astrobiotic Technology?
Astrobiotic is a competitor for the Google Lunar XPrize planning to build probes to land on the Moon, and selling payload capacity to customers ($1.8-2 Million/kg of payload, depending on if the payload is attached to a rover or lander. Considering the total capacity of one lunar lander (w/o a rover) would be 210 kg of total science equipment payload (to be launched on a Falcon 9- these landers near the Falcon 9's max capacity to the lunar surface) 210 kg of instrument space would cost about $378 Million. Of course, the instruments must be bought separately from elsewhere, so the total cost would be near the $Five-hundred Million Discovery Mission cost cap. Would it be worth it, and could something like this be financed?