Hi,
I'm daily dealing with apis, built by me or by a third party, this part is not a problem, communication with the database also not a issue, presenting it in a simple layout, easy.
The time consuming part here is what you mean under !simple design/layout!. I relay don't wan't to get dragged into a long project with 100+ reviews of "small design changes", if i can get a drawen draft from the beginning with the options and component available that would be the fest so that there are no unexpected additional features to work on for days.
Sorry for this somehow passive aggressive bid ;) but i think you get it :D
Thanks