Unfortunately side covers are one of those things that everyone lost, so there just doesnt seem to be that many left out there. Especially since you are looking for all original and in decent shape. I guess the better question here is how much are you willing to pay? People who have all original decent side covers know they are scarce and they are going to charge a premium for them, 180 does seem a bit steep to me though. Have you checked any local parts stores, or junk yards? You may have to buy one from the same year and have it painted. Keep your eyes peeled, keep checking the forums for people selling them, and just wait. Price is whatever you are willing to pay, sorry I know that doesnt really answer your question.
I know enough to get me in trouble.
1981 Yamaha XS650 Special(current cafe, code name El Diablo Rojo)
1981 CM400C, completed project (code name Home Wrecker)
1981 CB750K, completed project (code name Winter Blues)
SOLD 9-21-2013 gone but certainly not forgotten.
2009 USA Choppers Bad Boy, rigid frame custom chopper.