Welcome Cgabell and congratulations on buying your new family toy. We also own a Swift but a smaller two berth job for us wrinklies.
We too plan on a trip to Italy this year but we've nothing mapped out in any detail as yet. We will be crossing from Dover to Calais then, after a stop off in France we'll possibly be heading through for stop offs in Germany and Switzerland with the intention of hitting our first stop in Italy somewhere on the shores of Lake Como.
Pisa, Rome, Sorrento, Florence and Venice are also on our "would like to visit" list. We're both retired so can take our time and plan to be away for five to eight weeks starting mid to late May. I really should get down to some detailed planning but usually just play it as it comes along although the OH gets a bit nervous if we don't have sites prebooked.
Good luck with your motorhome trips and do let us know how you get on.