Unless you're going with heavy horsepower, I would try the old springs and see what happens. Make sure they aren't cracked or otherwise badly beat up. I'd ask the shop that rearched them what condition they were in. If they were hosed up, he shouldn't have done the work.

Stay away from the ladder bars unless you're going for really high horsepower. It would turn out to be a pretty expensive change anyhow. You'd have to dump the leaf springs, add coil-overs (or coil springs with separate shocks) and something to keep the axle centered.