Merging previous business' Facebook page with current page.

I have a Facebook page for a business that is now closed. This page has on it around 600 likes, my current (month old) business has around 100 likes.
Now I'd like to merge the old page with the new one. The problem is that the old page was a bar and the new page is retail... I know it's not really the done thing as the old 'likers' liked the bar and I would be showing them things they wouldn't necessarily have an interest in - but that's what the unlike button is for. It is based at the same address, I created both pages but they are vastly different areas. Would I be risking Facebook unpublished both my pages by going ahead? Can I sneekily change the name/details on the old page then merge them? Thanks!