I would think any good quality roller rocker would work with the existing lifters. Pushrods... maybe maybe not. For correct oiling and geometry, there should generally be 1 or 2 threads showing on the adjusters after they are dialed in. Push rod length may need to be different to get there.

I like and use the Comp cast alloy steel "pro magnum" rockers. The ductile iron rockers are supposed to be good also. Both of these need a hardened rocker shaft.