That sounds cool... I'd really like to try that path to Rome next Summer! I was very nervous starting with such little money (€200)... normally I carry much more but this time felt a 'call' of some sort to trust in providence and have my heart open.
It was a great experience although I was helped by a tax refund that appeared in my bank a/c and had a small 'buy me a coffee' site for friends following the walk.
Like the French man you mentioned, I met two walkers who carried no money and seemed to be permanently on the road... there was a real sense of peace from them. I don't think I could do that though.