Where can we rent or buy a tent for Balkan road trip?

I am planning a road trip through Macedonia, Albania, Montenegro and Kosovo this summer. We will fly into Skopje and get a rental car there. Besides other accommodation, we also want to camp for a couple of days. Since our flights are hand luggage only there is no chance of bringing a tent (or much other equipment) with us.

Are there places where we could rent camping gear? If not, where can we buy something affordable just for the trip? We basically need a two-person tent plus some sort of mats; we would bring our own sleeping bags.