Booked a round the world ticket for less than £1000 this year and went away for 7 months. Train across Canada was magical, west coast of the states was mediocre (much of a muchness and you aint gonna see much you aint seen on the tv), pacific islands were fascinating and worth seeing before mcdonalds and starbucks hit town. New Zealand must be seen in a camper, Oz by car up the east coast. Singapore was interesting, hot and strict, however much to do once you scratch the surface. Train it through Malaysia and Thailand, cheap as chips and less fattening.
Islands in Thailand were a pleasure and a great way to finish the trip off at low cost, in the sunshine and with great nosh. Hong Kong stopover on the way home.
Just do it. This life isn’t a rehersal. Any questions greatfully recieved.