After all of these response, I think my approach may be as simple as just setting an "Out of Office" response that says something like, I will respond as quickly as I can, I am not a retail store, so if looking to purchase something other than what is listed on my sale page, please contact an official Alden retailer... That way I don't have to respond to all the inquiries about if I stock the 975 in 8D... :-)
I really like some of the creative names... I may register multiple domains... :-)
You can also pre-populate the subject/message on your email link. Something like, "Dear Mike, I know you are not a retailer, but I have a comment/question..."