Help!!! 95 camaro z28 lt1

Ok so i bought this car with 170,000 miles
thinking it only needed a starter. Well after i
put one on it cranked fine but would die
after a few seconds because the battery
wasnt fully charged well i had 5 plugs out
already and had both the back an one front
left in because you couldnt get them from
the top well i went out and bought new
ones because one old one had a craxk in
the glass part.. well i had the front jacked
up and a buddy of mine pulled out the #8
plus and as soon as he did antifreeze came
out (a decent amount) but when i checked
the oil it had a green tint to it when i looked
at the oil on my fingers that i dipped in the
oil. And it was really thin but not milkey
looking but it did have a little group of
bubbles on top of the oil in the oil pan... car
got spark and gas but was sitting for a year
2 years at max.. i just need advice. Im
buying the whole top end gasket kit ( doing
it myself) and getting my heads shaved at a
shop but im no mechanic. Im just wonding
if anyone has went threw this and need a
little advice