GIVE ANSWERS - English

A good friend of mine is married with a japanese woman and live in Japan for over 10 years now.

Together, they have the crazy projet to do a travel by car from Amiens in la Picardie (my friend's native place) to Tokyo.
The budget is estimated around 20 000 euros but it not easy to save each month, as you probably know.

I already financially contribuated to help them but because the project interested me a lot I would like to do more to make it possible.
That's why I'm looking for some ideas, like crowdfunding or other manner to get money faster.

All of you polyglot friends, world lovers let me know what you think of.