Sbc 350 not sure on the lift. Maybe 4-6 inch. Lots if trimming but it will flex w 40's and not rub. I have been building it for about 4 months. Future plans are 4 link rear and 3 link front with coil overs.
You posted a link that had coilovers and had the option to buy with choice of springs. It also had a package deal for 4 coil overs with springs. I can't find the link anywhere. Do you remember what the site was? I have looked at profender and ruffstuff and its not one of them.