Finance and money forum

Hi,

We are a married couple who want to travel long time from Moskow with the Transmongolian train to Beijng all the way down to New Zealand. We already are saving every penny and I'm busy making a budget and I really need some help. Below you will find the country, the time and the daily budget for the two of us excluding flights and visas
3 months China - $65
2 weeks Tibet - $60
1 month Nepal - $40
3 months India - $40
1 months Myanmar - $40
1,5 months Vietnam - $40 excluding transport due to buying a motor
3 weeks Cambodia - $50
3 weeks Laos - $40
2 weeks North Thailand - $40
1,5 months Thailand islands - $40 excluding getting our PADI Instructor license
1 month Malaysia incl Borneo - $45
2 months Indonesia - $65
8 months Australia - $80 excluding buying car and gasolin
2 months New Zealand - $80 excluding buying car/motor and gasolin

Are these daily budget to low or even to high?
Does anyone know if it is possible to buy a motor in India and travel around?
How about getting your PADI Instructor diving license on a Thai Island? How expense is it per person and how long will it take? We already have our PADI open water and done around 50 dives each.

Thanks so much,
Nienke