Some random observations:

1. Withdrawing in excess of £20,000 in cash from a euro bank account will require the seller to jump through a number of hoops under the money laundering regulations before it is released by the bank; the exchange rate given will be criminal

2. Carrying £20,000 in cash across Europe will require customs declarations to be made

3. Trying to make a £20,000 bank transfer from a euro account to a sterling account will likely not be instant – from memory next day is the best possible. So, anyone collecting the speakers is likely to be involved in an overnight stay before the speakers can be released.

4. Shipping costs for DSP8000s are likely to be a minimum of £500 even if you know what you are doing, and likely will be much more

5. Insurance on top of shipping is unlikely to be available at less than 3% on a one-off transaction such as this

6. Trying to enforce a “contract” across country borders if anything goes wrong will not be easy and is best avoided.