I also agree with just getting some boots.
Wrapping is a good thing to know how to do, not just for polo wrapping, but should a horse be injured or something, you'll know how to bandage it up properly. So, if someone around you knows how to correctly wrap, see if they can teach you.
As far as riding or working in them though, I personally feel much safer with boots. I don't have to worry about them coming undone, and it's easier to evenly spread the pressure on a boot with just two or three velcro straps vs. however many times you go round and around the leg with a polo wrap.