Finding a porter in Europe would be difficult and expensive. A better bet would be to hire a donkey. This is quite popular in France and October in the South would be OK. Google "donkey walk france" or see, for example:
http://www.safrantours.com/en/family-walking-holiday-donkey-france
There are also baggage carrying services that use vehicles to drop your stuff off at your next stop. For example:
http://www.sherpa-walking-holidays.co.uk/tours/inntoinn/inntoinn.asp
As you have mentioned almost the rest of the world as a possibility in your post, I think that you need to do some weather research to narrow things down a bit!