Hi Steve,

I can definitely assist you with any questions that you may have regarding our housings. I would make sure that if you decide to go with a used housing through ebay or an alternate source that you are very clear on what the condition of the used product is that you are receiving. We have had some instances where customers have purchased a used unit and it wasn't what they wanted or their dome port was scratched beyond repair. If you have any questions you can reply to this post or drop us a line at our website.

Take Care,
Erik