is a 95 Honda Civic junk if i need to replace a head gasket

If coolant got in the oil it most likely damaged almost every bearing in the block. Mainly crank and rod bearings. If not the engine should be saveable. Even if its not a d15 or d16 engine isnt hard to find and all the work on the car should be fairly easy. Only a little 4 cyl with plenty of room under the hood.