steamboat:
Have you considered listing on bitfunder for those who purchased hosted solution? It will be easier for you to manage payment and also much more flexible for the buyer to transfer ownership.
A good example:
https://bitfunder.com/asset/SNQ.CoinIPlease consider! Thanks
I would strongly recommend against it. If you need to transfer funds to or from Bitfunder you are currently forced to use WeExchange. I am currently having problems accessing my WeExchange account. They don't answer emails or respond to forum PMs. No support at all.