You've got the basics of it!
On the line, be sure to get a woven Tenkara line - they are the easiest to cast (in flyfishing you cast the line, not the fly - even in Tenkara). For the tippet, nothing heavier than 5 lb. test.
Good choice of flies. I'd recommend two sizes: 12 and 16 (16 is smaller). Get several of each. Eventually you'll want more, but those three, in two sizes each, will get you started anywhere.
Right on where the fish are, plus in front and behind big rocks.
General advice for noobie - buy the book "Curtis Creek Manifesto". Memorize it! Pay special attention to the bits about sneaking up on the fish! There is stuff about lines and reels you don't need for Tenkara, but everything else is pertinent. It will answer your questions about types of flies, etc. (Dry float on top of the water, wet underneath, some Tenkara flies do both!) Here it is on Amazon:
You would also do well to visit the tenkarausa.com website, and read all the forum posts. You can get a lot of info particular to Tenkara there.