Is there really a disparate price difference in cleats between OPs country vs. US? Maybe $2-3 differrence? (I'm guessing here...) Not really much of a score to ask your buddy for a favor.
If it were me, I'd get something uniquely American that's hard to get in Europe. Like a Niner, Intense or Ibis frame. Not a pair of ubiquitous cleats.
That said, online shops like CRC, Wiggle et al are cheaper than their US counterparts IME.