[Xeen]

Here is something else to think about, if you do 2" drop springs and 2.5" drop spindles that will put you at 4.5" drop in the front and you probably wont want to go more than that because you will be at 4.5" front and 6" rear.
Also keep in mind that the drop spindle doesn't change your geometry so if a 3" drop spring does end up being unreconcilable then it wont work now and it wont work later either.