Spring Relocation Question

After a whole lot of measuring and calculations, I've decided that sliders are the best way to go. I made multiple adjustments in the front spring hangers (stock, 1 1/2" lowered and 1" to the rear). The sliders should be here tomorrow. I may need to modify them (lengthen them 1") to accommodate the for the rear most setting. By making the front hangers from 3/16 material, there's enough meat there I should have several more settings if needed.