Dream Vacation v1.1

Ok here's a plan for a big holiday, to be done almost entirely overland:

1. Travel up north all the way to China, then take the Trans-Siberian railway all the way to the end of Russia;
2. Enter Europe from the East, slowly travelling up North from there (Romania-Hungaria-Czech Republic-Poland - Sweden etc)
3. After exploring the Scandinavian countries, go back down Southwest Europe (Holland-Belgium-Luxemborg-France-Spain)
4. Cross the Mediterranean to Morocco, travelling East towards Asia and skirting up the topside of the Caspian Sea. (Algeria-Libya-Egypt-Israel-Jordan-Syria-Turkey-Georgia-Kazakhstan)
5. Worm my way down to India, then to Nepal for a trek of the EBC and ABC
6. Go over to Tibet next, and take the Qinghai Express to Beijing.
   
7. Explore Beijing and the rest of China till I go broke and fly back to SG.

Think 300 days and a $15000 budget enough?