you should be able to get away with softer springs, with the softer springs you will only run onto trouble if you ever tow. i remember when i upgraded the suspension on my swb, it had lovely sagged springs with bullbar winch etc, it rode like a rolls royce. after i upgraded it was too rigid and uncomfortable. if i had of kept the standard load springs with the 2" lift if would have still had a nice ride. i think the same would apply to you mate.