Scott my son and I recently did exactly what you are doing, engine and PQ series wise. Ours is hydraulic lifters and PQ series rockers. Summitracing has Crane pushrods that fit our deal perfectly. CRN-34645-16. They are ChromeMoly 3/8" at 9.234 long. Slightly less than 100 bucks and look very good.
When you install your PQ setup watch carefully the radius on the end support stand for clearance with the rocker at the bottom. Ours needed a little "touch up" to make sure we had enough clearance. Good luck with yours.
