I think it's a wonderful idea.
Eggs aside, the farmers market in Ruislip is worth a gander, some decent food on show for a small venue.
https://duckpondmarket.com/ruislip
https://the-gingerbread-house.co.uk/ducks-hill-farm-egg-vending-machine/
We get our eggs from here, going today actually.
If yr up to it, you could sell yr eggs similarly, nor too far I guess :lol: