I assume you are talking "traditional" since you mentioned round balls...Do yourself a favor, buy a bullet mold...Round balls are the easiest of all projectiles to mold and the mold will last for the rest of your life...I use a "bag" mold by Rapine, but I like being more pc than most guys, Lee and several others make round ball molds...You don't need a fancy setup, I use an old Coleman gas stove, lead goes into a can that vegetables came in, I borrowed a old spoon from the kitchen and use SnoSeal to flux....So the only thing I bought other than the mold is a ladle...

Patches...Go to Walmart, Hobby Lobby etc...a bolt of 100% cotton pillow ticking is about $4.00..That will make a bunch of patches...

I lube with SnoSeal, have for 30 years or so...I clean the barrel with rubbing alcohol...

You probably shoot percussion, I shoot a flintlock...I ordered 100 or so a few years back and still have plenty....

The Goex distributor in NC is about a hour and thirty minutes, so I just make a trip over there when I need powder...