1992 Toyota Pickup oil leak

i have a prety bad oil leak coming from the front of the engin mostly. Its comeleatly covering my suspention, my altinator, an tierods with oil as well. i want to fix it but im affraid im not much of a car expert in fixing problems especially when it comes to an engin. how much would it cost to fix such a leak i know it really depends on where its commin from. but i was hoping i could get a few estimates on areas were its prone to be leaking in the front of the engin