Here you go, one of the best Overland vehicle on the market for a very reasonable price:
http://www.tradingpost.com.au/Automotive/Used-Cars/AdNumber=D776301232625?AdOnTop=
Just fly to Perth, register it and start driving around the world. Then when you are done sell it back for the same price - or more.
Western Australia is perfect as you can renew the registration online (at least last time I checked) so there is no need for photoshop even if you are in the middle of the Congo...

http://www.tradingpost.com.au/Automotive/Used-Cars/AdNumber=D776301232625?AdOnTop=
Just fly to Perth, register it and start driving around the world. Then when you are done sell it back for the same price - or more.
Western Australia is perfect as you can renew the registration online (at least last time I checked) so there is no need for photoshop even if you are in the middle of the Congo...