It would help to know what equipment you use, etc....
Anyway, if you can make it straight from PANC to Don Muaeng, that's probably your best option, if not, couple possibilities:
- UHPP on Kamchatka is fast and efficient and on the great circle, however all crew and pax need to have a Russia visa.
- If that's a no-go, Sapporo or Osaka in Japan can give you a reasonable turn-around. Be sure to ask for the fuel prices and handling charges in advance to avoid surprises...