Are you replacing springs because of your current ride height challenge? or because of ride quality? If you are satified with ride quality then just use a lowering block. There are opinions on steel vs aluminum.....I personally do not have an opinion. It sounds like a lowering block and a sway bar will get you where you want to go. There is a rabbit hole you could look into.... the mono leaf/cal trac /sliders and that might be a little more dollars.....pending use of car. Good luck. nice looking 7!!
EDIT: Start with a 2". IMHO
I pretty much just said what the Prof said....Props to the Prof!