<font face="Verdana, Arial, Helvetica, sans-serif" size="2">I understand what you are saying - My plan was to get as close to each place as I can on ONEWORLD and then take a puddle hopper to each location.
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You can fly to Accra (ACC) then make your way to Lome (LFW) via Ghana Airways.
You can fly to Moscow (MOW) with BA then make your way to Novosibirsk (SVO) with Aeroflot.
You can fly to Bangkok (BKK) with BA then go to Chiang Mai (CNS) via Thai Air.