I would not advise using the 273 rockers due to the aforementioned spring /retainer interference issues. We have also experienced them bending with high spring pressures.
A good set of aftermarket reputably produced adjustable rockers and shafts is what I would recommend. The adjusters should be the type that use a locknut as opposed to a pinch bolt. Roller tips are optional. The rocker arm does not care if it is a hydraulic or solid lifter. The pushrod length does. hope this all makes sense