Merchandise in baggage UK->EU goods value question

[turbopodge]

I'm a sole trader building musical instrument accessories in the UK. I'd like to take a number of these products to some small-scale trade and consumer shows in the EU, both to exhibit and sell. I notice the carnet option does not permit me to sell products directly, so that's not ideal. However an alternative might be to use the rules for "Commercial goods in your accompanied baggage, also known as Merchandise in Baggage" (quoting the gov website). Now this has a value cap of £1500, which if I went by the retail price to the end user would only allow me to take 10 or so items, which isn't good. However the Simple Online Declaration (see below) specifically asks for the amount I paid for the items and uses this as the declared value. Since I build/manufacture the items myself from components the amount I pay for parts is a fraction of the retail price. Therefore I should be able to take a decent number of items to sell.
Is my interpretation of this correct?

Declare commercial goods you’re taking out of Great Britain in your accompanied baggage or small vehicles

Find out how to declare goods you’re taking out of Great Britain to sell or use for your business that are under the total value of £2,500 and meet certain other conditions.

www.gov.uk

 

[Deleted member 335660]

I am not sure about the different categories but I remember back in the 80’s going to Europe under Carnet. I was taking a computer to demonstrate software, not selling the hardware. I had to get it stamped at each border and to show I had the goods when I left EU, so be careful.

As for value, we have this when posting goods and I tend to put the wholesale value as this is what it cost me. So I see no reason why you cannot do the same.