Hello,
I tend to write short proposals, I hope you don't mind.
It would be most helpful if I could check out those iframes before I suggest a solution. I don't think anyone could give you a solution without checking out the current state.
I'm very good with HTML, CSS, PHP and jQuery and I'll tell you right away if this is something I could do within a reasonable timeframe. I won't waste you time, that's for sure.
Kind regards
pixelke