The accomodations budget also depend on your preference. For us, we opt for low budget with good review and good locations, the nearer to the train station, the better! We booked the hostels online through Hostel World and Hostel Bookers, thus we pay 10% as soon as we booked, and the balance once we checked in. Here's a summary:-There is a slight variance in the 10% charges due to the currency exchange voltality, so the 10% is calculated in RM base on the charges to our credit card. ;)
Let's just assume EUR10 per day, or roughly overall EUR 120 for 12 countries, ~RM570.
Overall basic budget is.......tara taaa taaaa.... RM7233.
I've yet to summarize the detail budget on metros, bus, tram, entrance tickets that we spend in each cities, so, probably i'll do that once i've done writing on all cities. ;)
All in all, it is safe to assume that overall $$$ spent could be within RM10k.
WARNING: The world could be being used here is because there will always be tempations for shopping and this could cause your budget to shoot up more than RM10k, so, don't blame me if that ever happen. You've been warned! :P