CSS/CSA 2-Piece Wheels - Value?

[Hardway]

I picked up a '77 280z this weekend and the seller gave me these wheels. On the front they say CSS in between 2 of the spokes. They are true 2 piece wheels as the center will unbolt from the rim. On the back they say they are 14x6.5" Max Load 1580lbs and have a part number 026832 stamped in 2 places. In addition 4.50 is stamped where the hub meets the wheel, I am assuming this is the back spacing. After some research I found the link below and confirmed they weigh around 18 pounds each. Has anyone seen these before? Are they rare? Any idea what they are worth? I am considering taking them apart, cleaning, painting, and polishing them. However if they will only yield a little money even in good shape I will just sell them as is. Thanks!

http://www.toymods.org.au/forums/wheels-tyres-suspension-brakes-sale/58940-4-gold-mesh-14x6-5-3p-wheels-css-csa.html

[Hardway]

I sold the wheels today for $170. The buyer plans paint & polish the set to use them on this his '65 Mustang.