I bought the Low Back style a couple of months ago for an Xpress H16DBX that I am working on. So far I really like them.
Got them from Amazon ... https://www.amazon.com/gp/product/B001NZIWEC?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s01
You are more in the $5500.00 range for one of the H16DBX boats. That is with Camo paint, standard wheels, wiring for the trolling motor, bow and stern lights.
I just purchased an HD16DBX Xpress from Athens Marine back in December. I have not had it in the water yet as I have been rigging it as an all electric boat. So far I am very pleased with the quality of the boat and trailer. The welds look great and the fit/finish looks great as well .......