Extra fees for EU orders

-- HikaShop version -- : 6.5.0
-- Joomla version -- : 6.1.1

Hi there,

Due to some new regulations, I need to add an extra fee at the checkout for orders shipping to the EU (I'm in the UK).

I need to add an extra €3 for each product *type* ordered - not the quantity. So if they order 3 x spoons and1 plate, I need to add €6. This is a customs thing apparently.

I see that there is a checkout fee plugin available - will this be able to work it out? Also, my maths isn't great, is it easy enough to work out the calculation?

I already add extra taxes and shipping for EU orders so the zones are all set up.

Many thanks for any help.
Leila