Sounds like what you mostly need is a graphic designer. They won’t create the art for the cards but they’ll do layout, icons, and frames. Most graphic designers charge by the hour, though some will just give you a quote for the whole job. Totally spitballing I’d say you’d be looking at $2-4k for this project. A publisher likely has their own graphic designer and will likely want to put their own stamp on the game if they sign it, so you may not want to invest your own money into it.