I can feel for you. I broke the banjo nut and the head and copper washer fell into the return tube. It wasn't fun but after 4 hours I fished out the head. 5000 miles later the washer is still there. I took the risk and so far so good. I'm with you on removing the motor and flipping it upside down. The only problem you may have is the residual oil having that pin stick. You may need to wash it out. No fun either way but I do hope you get it out.
