if its got coolant in the oil do not drive it. or run it. you;ll spind a bearing and need a whole engine.

a basic tool set will get the job done. and a torque wrench.

gaskets and head bolts and fluids around 200 i'd think all and all.

shop around for the best prices on line for the gaskets. id stick with felpro gasket if you can. advance auto on line, find a discount code for more off, ebay, amazon, rock auto and so on. shop them all find your best prices.