Sounds a great journey and everyone will welcome you in such a cute car. I had a 44 sport last year and the hood was a pain to put up so you are best without it, although you might consider a cover/torneau for parking it in the evenings.
The lack of a spare tyre might be an issue with you travelling through so many countries and so many miles. If the spray can fails not everyone can handle wire wheels.
Don't forget you should grease the steering every thousand miles, your king pins will take a hammering if you are driving all weathers for 12k miles.
All the best on your travels