Yes. You can arrange a private psilocybin session in the Netherlands even if you are booking from New Zealand. Triptherapie offers one-to-one sessions at your accommodation or at fixed locations, after an intake to confirm suitability.
Included are an intake, personal preparation, a preparation call with your chosen facilitator, a fully guided session of about six hours, and an integration talk.
Current pricing is roughly €750 to €950 for a private session at your location, plus any travel and parking costs, or about €850 to €1,250 at fixed locations where lodging and meals are usually included unless stated otherwise.
For details, availability, and booking, see the Triptherapie psilocybin session page: https://triptherapie.nl/psilocybine-sessie/. Safe travels and good planning.