I just buy patch kits (varying brands) at whatever local bike shop I'm closest to when I need them, and my general impression is they all seem to work fine. Same with tubes and tire levers, all of these are fairly basic products that are hard to mess up, although you may want to consider the size of tire levers and a patch kit to make sure they fit if you plan to carry in a small seatbag. I think good pumps are worth a bit of extra money, inflating a tire with a bad one is no fun. I have a lezyne road drive that I like, if you are set on cheap your best bet is probably to check out used gear shops.
Personally, I only carry a pump and patch kit on my road bike, when I'm likely to be 10 miles away from help. For town bikes used for errands I just run tires which are unlikely to flat (not even kevlar, just thicker rubber) and figure if I do get a flat it's not a big deal to either walk home or to a bike shop or get on a bus. In the past three years that's happened twice.