I found a place on line that I can get them for $.60 shipped to me. My local dealers want $1.25 - $1.50 per washer. You should use 3 every service. Two for the oil drain plugs and one for the final drive. PM me or post your wants on here. I do want to get a order going soon.
When they come in, you will have to arrange to go on a ride with or come and pick them up.
I also am working on oil filter buys.