Dont quote me on this but I may actually have a plan and a way to achieve this overland.
Chiang Mai>Mandalay>Dhaka>Kathmandu>Pokhara>New Delhi>Varanassi>Fly around the ‘Stans>Istanbul>Marrakesh>Portugal.
On a budget.
Gets me half way home. Or further away. Either works for me.
Stay tuned