This can be a little tough .... but better than pulling the engine, IMO. But that's totally up to you. If this sounds TOO complicated ... just pull the entire engine.
If you want to do it without pulling the engine .....
Drain oil.
Unbolt motor mounts.
Jack engine up as high as possible. Use engine hoist or a jack with a wood block under engine. DO IT SLOWLY & watch for any ground wires, etc. that may be too short for you to keep jacking. Remove them if they are. Then get engine as high as possible. Tranny mount and exhaust may need to be unbolted to do this as well.
Place a piece of 4x4 wood under each motor mount.
Unbolt oil pan. I believe a couple of bolts may be into your main caps.
Slide pan out. K-member will make this tough .... but it's possible.
Unbolt & remove oil pump.