You said you don't want to spend a lot of time and money right now fixing stuff, you just want to go sailing. I understand what you're saying. I also know that there are ways to stay on the cheap, but buying cheap stuff NEVER pays off in the end. If you can get stainless cable at Walmart that's as good as a boat store, Go for it ! But if you are buying inferior products to save a few pennies, all that time that you thought you weren't going to have to spend fixing stuff, might end up taking even more time later if that cheap stuff fails at the wrong moment. You don't have to spend a lot if you look around and buy wisely.
As far as your sails, if you can find used sails that are pretty close, it seems to me you would be fine for a while. I bought new sails, because I wanted to have every advantage in the learning process, and had read that a worn out mainsail can make things more difficult and makes heeling more extreme.
Go with your gut.