Bathroom and deck development

We are in the process of finishing our Cabin by Lake Isle. We have the bathroom to do and a covered deck to finish. The bathroom just has the walls up. We have a corner jacuzzi tub to be framed in. I would like to create a wow bathroom- maybe using pillers or unique framing techniques. The room is only about 10X12 and has a sloped ceiling. I guess I first need someone who can give me a design that will dress it up. Then I need someone to frame it in. Does anyone know what cost I would be looking at? The covered deck is 31X14 Aprox. The 31' run along the house. It has a plywood floor but that is as far as we've gotten. I want the deck screened in. So I need someone who can design a clean modern looking enclosure and then an estimate to do the job.