Darts assemble!

This was my daily driver...engine has a knock suddenly. Been doing what I can on part time wages to keep it running good. Now may need a rebuild. Anyone know how to remove the oilpan without pulling the engine? I've done everything else I can to figure this out. It' still runs great except for the knock. I would like to try to save the engine so I'm not driving it till I can figure out what is causing it. It's definitely in the bottom end sounds like a rod bearing or wrist pin. I need a cherry picker and an engine stand to do it right. I'm pretty sure it's going to need rebuilding. I just need to figure out how. I know just a rebuild kit is around $500 and I'll need to at least have the block sent to the machine shop.:banghead: Anyway any suggestions are welcome... I'll post updates as I can