The shastra treats place as part of the vidhi. A Rudrabhishek belongs at a Jyotirlinga; tarpan belongs at Gaya. A devotee settled in another country can still have the rite carried out where it belongs, in their own naam and gotra, and receive the video on WhatsApp when it is done.
Payment runs through Razorpay, which accepts international cards. The video can be sent to a WhatsApp number in any country. Where a family gotra has been lost, Kashyap gotra is the accepted practice.