Help! Air filter lid/cover:

[401KVet]

Would anyone know where I could find a replacement air filter cover/lid, (open type) that would fit a 1980 L82. I was also looking at K&N's top filter lid's, but they don't seem to have one that would fit, so they say.
Any help would be great. :cool

 

[bandit]

ive been looking at on for my 81 and i found the k&n type right on ebay, for about 50 bucks.