for your use i'd call espo ( https://www.springsnthings.com/ ) and get a set of 6 leaf V8 springs in whatever flavor you desire. stock height, +1" and +2". ( +1" is th emost i'd go) you'll be much happier with them in my opinion...
the springs are not always on their site. give them a call. the woman that usually answers the phone os very knowlegeable..