The way your page set up right now is not really a good fit for how we are delivering access with the bundle. You technically could sell the game on our site by using the external keys tool & adding an ‘other’ key, but we decided not to give out external keys for bundle purchases because it causes more issues with people trying to grab up Steam keys and then having to deal with the support tickets associated with that.
Sorry I don’t have a better solution for you. We are building a separate collection of supports for all the pages that aren’t up for sale though, so we’d be glad to add you there.