Air Transat has a direct flight from Vancouver to Paris. From Paris travellers fly to Toulouse. This can be done in one day however I do recommend a stop over in either Paris or Toulouse to acclimatize. Your instructor can recommend hotels in which ever city you would like to stay in.
From Toulouse travellers can take a train to the city of Albi if you wish to visit the birth place of Toulouse Lautrec and to enjoy his work at the Musee Toulouse-Lautrec housing all of his work from his childhood until his untimely death at age thirty-six. Both Albi and Gourdon can be done in one day.
If you choose to include Albi or not, your final destination will be to take the train to Gourdon which is the nearest town to Frayssinet. Bill will pick travellers up at the train station and drive you to Frayssinet. Train arrival time for guests is preferably late afternoon.