We've changed the route a little bit (thanks to the ticket center):

Londen-Moskou
Moskou over land to Delhi
Delhi - Hong Kong (visit Hong Kong)
Hong Kong - Hanoi (visit Vietnam)
Hanoi - Tokyo (visit Japan)
Tokyo - Sydney
Sydney - Christchurch
Christchurch over land to Auckland
Auckland - Papeete
Papeete - Easter Island
Easter Isl. - Santiago
Santiago - La Paz (visit Bolivia and Peru)
La Paz via Santiago - Rio de Jan
Rio de Jan - Londen
Total miles = 33552

Can't wait