Hey Daan & Fraser,
Doing much the same route myself, from London to Oz - passport is with Pakistan embassy currently and then will be offski - thinking/hoping early next week.
Rough route currently is Europe (France, Belgium, Germany, Austria), Slovenia, Croatia, Bosnia Herzegovina, Serbia, Bulgaria, Turkey, Iran, Pakistan, India, Nepal, Thailand, Laos, Cambodia, Malasia, Indonesia, Australia (maybe NZ).
Biggest issues right now are whether I get the visa for Pakistan as they didn't seem too keen at the embassy given I'm doing it on a motorcycle. Also concerned I'll get to Istanbul, apply for Iran visa and then be turned down/give 7 day transit only. Not sure what route I take then.
Once I've got the above sorted I'll start worrying about Bam -> Baluchistan danger area
Would be good to keep up to date on both your journeys and plans to see if we can catch up along the way