Factory leaf spring replacement upgrade dropped my lift by 2" Help!!

Before and after my Deaver spring install
must say I'm disappointed with the 1 3/4” additional height in the rear. I have reached out to them with my concerns now waiting for there response, call me picky but I wanted to keep the truck level with 750 lbs.of bed weight everyday carry then an occasional trail ride with 100-150 lbs added in camping gear and tow a cargo trailer once or twice a year with 250lbs of tongue weight yes it has a 6” Rough Country lift
that is 12 years old and with non adjustable coil overs, adding a 1” front spring lift adapter I was told would ruin the 6” lift geometry, adding a 8” front lift costs over $8K and is not in my budget, can any one recommend an option and do you think Deaver’s miscalculated the spring arch height?

 

I'm no expert, but I would have expected WAY more arch for 6" of lift. Especially unloaded. These looks like any other leaf springs that give a 1-2" lift.