The problem is - the proposed concept is a logistic nightmare with the value of the shipping beyond a small number of seeds.
Even more seed are a commodity where trust that it is genuine is very important - imo even most important.
What stops someone selling a similar industrial species for a rare heirloom variety? Even a botanist (I am not one) would need several weeks to determine the authenticity of a stock and it might even be impossible without sophisticated techniques like analyzing several dna samples.
I think the best way to establish a practical project would be to get a decentralized infrastructure in the form of a web of thrust (wikipedia
This could be also helpful for the exchange of other value-able commodities like precious metals, integrated circuits and so on...