Not really sure where to start, need help..

Alright, that's a ton of info but here is wher I am at right now.

I sprayed penetrating oil down the sparkplug holes around 4 times, I haven't tried to crank going CW, since it looked like it loosened a belt? It spins CCW with ease now. I removed all the oil from the pan, but when I went to put on a new filter I couldn't remove the old one. I bought a oil filter wrench and some Marvels. Will be doing the rest of oil filter and pouring onto the valves. I need to check Autozone for a gasket, advanced auto was out.

So that's where I am at right now. Is there a tutorial on setting the valve lash?

With the valve cover off, crank the engine over until you see the exhaust rocker arm close, then the intake. When the intake fully closes, then you are on both base circles for the cam and should be able to set the lash for that cylinder.

Repeat for each cylinder...