Photogenic Studio Lights

Not sure if this would be the right section for this, but we have some older Photogenic Model 7520 studio lights that we're selling. We have an interested party but unsure of what to ask for them. One is missing the dust cover and we have stands for all three. We also have extra bulbs. Any insight would be greatly appreciated. Thank you

Dang, you got me all excited since I am looking for lights (prefer White Lightning). I would check ebay completed sales and maybe KEH for ideas.