Probably a few hundred dollars
Look under the rear seat. You should find the pump as well as the fuel filter.
The 2010 Hyundai Accent has double overhead cam (DOHC).
The 2011 Hyundai Accent has double overhead cam (DOHC).
The 2012 Hyundai Accent has double overhead cam (DOHC).
The 2005 Hyundai Accent has double overhead cam (DOHC).
The 2006 Hyundai Accent has double overhead cam (DOHC).
The 2003 Hyundai Accent has double overhead cam (DOHC).
The 2009 Hyundai Accent has double overhead cam (DOHC).
The 2014 Hyundai Accent has double overhead cam (DOHC).
The 2004 Hyundai Accent has double overhead cam (DOHC).
The 2008 Hyundai Accent has double overhead cam (DOHC).
The 2007 Hyundai Accent has double overhead cam (DOHC).