Hello, i am from Austria and thinking about helping you guys out.
Just a quick question, are you mostly interested in the NFT or physical as well?
Shipping could be a bit too much effort but sending out the NFTs would be easy.
As far as i know the majority of the 150k Stamps not distributed yet, so there could be still time to accumulate.

No Idea of pricing yet, also there would be fixed prices for colors, would like to sell you mostly black and green stamps as well ;-)
Will create an dedicated topic later on if enough ppl are interested.