What kind of climbing? going on a bridge for overpass?
Steady 3% grade for 20+ miles?
or 12% grade for 2000 ft?
Pavement or gravel?
I would assume that in Italy, roads are narrow, trikes should be out of the picture, and there are plenty of hills that are beyond what US rider consider "climbs", and once you get over the climb, you have some serious and dangerous downhill on the other side, you gotta be more specific of your needs.
If you are looking to get a recumbent, climbing ability shouldn't be priority, since recumbents are not meant for climbers on bicycles.