Just a few minor comments
The ideal web sell is an XT rear derailleur. I don’t need to find what the quality will be or what it will look like, I already know, so online is fine.
Unique and online are much harder bed fellows. So I think face to face would make more sense
(random thought stick a vid’ on a clouding funding website and say that if you get 100 orders you’ll do then for £70. Insert your own numbers
My brother inlaw lives on a barge making dolls house furniture. He will then travel own to London for the weekend and sell at specialist fairs in posh london boroughs like Chelsea. He recons it brings in less than minimum wage but living costs are low so he accepts that compromise. Online sales are usually from people he knows