Sounds like your all set.
Because it is a cap lock you will be able to shoot real black powder, Pyrodex, 777 or one of the other synthetic black powders.
Although most
rifle shooters would choose a thicker patch the .010 thick patch you have chosen should work all right in your pistol with the .495 diameter balls you have.
You can use powder loads ranging from 15 to 40 grains but I would start my loads at 20 grains.
A load higher than 40 grains of powder load will create more fire and smoke but it won't add much to the velocity of the ball so I consider it to be a waste of powder.
Don't forget to use a patch lube. The commercial lubes like Bore Butter will work but so will olive oil, vegetable oil or even Crisco.
If you don't have access to any of these and you intend to fire the gun within 20-60 seconds after loading you can also use spit to wet the patch.
Spit, if left in the bore longer than that can start rusting the bore.
The most important thing the lube does is to soften the fouling from the previous shot. This makes loading easier.
A good way to get the patched ball stuck in the bore is to fail to lube the patch after the gun has been fired once.
If you do forget to lube the patch, or for any other reason you get the patched ball stuck part way down the bore just pour some water into the muzzle and let it soak the patch for a while.
It will really loosen it up so you can ram the load down onto the powder charge.
Under no circumstance should you try to fire a stuck patched ball out of the gun without the ball/patch sitting on top of the powder charge.
Have fun. :thumbsup: