(with the same aircraft for example Brindisi: 198 Euro, Venezia Tessera 459 Euro). AVGAS can be difficult to get, do not rely on the published information but call them before the flight. And everything may take a little bit longer, don't expect a quick turnaround
With 198 Euros for what I assume is a light GA aircraft - plenty of reasons above to avoid Southern Italy. You're certainly not selling it to me.