oil leak

I bought my first car and S10 a couple weeks back. The guy told me there was an oil leak but I bought it anyway, I figured I'd fix it, even though I've never worked on a car before. The starter seems to have some oil leaking on it as well the oil pan? (does that make sense? it's a big gray box...

Small oil drip only when I shut truck off? Dripping from under the bolt right above oil pan bolt where pan and transmission or engine not sure? Any ideas?

Does anyone on here know the specs for oil pan bolts on a 95 2.2L? My oil pan gasket is bad and needs replaced but I am also missing a couple bolts. I can’t seem to find any for the 2.2L. Would the bolts for the 4.3L work? Or do I need to pull the bolts and take them to a nut and bolt shop and...