I am setting up my Zone VI (modified to 8x10) enlarger.

Any tips and tricks for getting perfect alignment? I'm planning to use a Versalab alignment tool but before I get to that step I was hoping to at least have a bubble level on the film carrier show me a good result. It's just a little tricky using the wall mounting bracket at the top and the bracket at the bottom.

Is there anything on the head itself that can be adjusted?