Yeah I don't really understand the part about rotating the crank into place. I've seen some fucked up za's and I've never seen one where the crank won't go into the bearings on the cover. Think I'm just misunderstand what you're saying.
I wouldn't jump to any conclusions just yet, oil cold be dripping out somewhere else or leftover from the build, just get it together stock for now and see if it will run. Definitely don't mess with a kit until you get the bottom end sealed up and sorted out.