It's just that, on my side, I'm less qualified to comment about solar. In the long run, we're all dead. John Maynard Keynes
I know that Italy has a decent feed-in tariff but that the bureaucracy can be a hassle (varying with the Regione you are in). My dream is to meet someone whose cousin has a 500m2 factory roof somwhere in Puglia. Something like that would remove the need to buy land.
An interesting concept is this one which allows dual use of land (PV with car park or grazing cows below) and is tracking so it will get up to 30% more energy. I don't know if they are mass producing this yet. They mention a 600kW system which should be finished about now. This is still medium-large for a PV system.
I would be willing to lend a hand with whatever relevant experience I have but I don't think I'd be able to do it alone. Otherwise it would probably not be ready before the time when you want to get your retirement money out. Real capricorns don't believe in astrology.