1993 Plymouth Voyager Just Got Drove Two Days While Driving Dies Whouldnt Start

i just got it i drove for two days and while driving it it dies and whouldnt start so we changed the fuel pump then it caught fire so then we had to replace the wirering and air cleaner cover and then it started once again but i had to jump it every time i started it so then we triyed anouther baterie and now it sparks under hood and it wont start please help single mom and need vehicle to get my kids to school dont know what else to do