Vector Conversion of 4 Banner Images

We have 4 banners that we need converted to vector artwork. We have 4 png images that we need converted to vector artwork for large scale printing. The images are attached. - Sizes: two are 50.5" height x 28.5" wide... (Budget: $250 - $750 USD, Jobs: Adobe Illustrator, Graphic Design, Illustration, Illustrator, Photoshop, Print Design, Vector Design, Vectorization)