I have nothing to add more than @novica already said. I could only add some more examples:
And the closest I managed to get there through enormous theme modification and calculations inside
With one VAT code
It is preaty good but involves as I said to much hack, that could be changed in future exposed variables,
But here is with multiple VAT codes. Problem is that 0% VAT is nowhere exposed and I cannot properly separate in totals. So here is test invoice vith all VAT codes
I would also like to have some oportunity to generate Amounts in words in local language, but 