Try to find an used Genz-Benz 3-0 8" or 10". I own one (and a big expensive amp too, 1512 Schroeder, db359, AG700...) and it's really a magic piece of gear, sounds very nice and a breeze to carry.
Apart from that, various options, but as far as many little heads fits in a gigbag pocket you are not bound to combos.