you'll never have to worry about solid lifter stuff. You can rev a hydraulic lifter to a bit above 8k rpm.
Solid lifters you have to adjust ALL THE DAMN TIME. They're VERY expensive, and only worth a damn if you are revving over 9k rpm.
Trust me, just dont worry about it. Walker Wilkerson makes like 530whp on a 2.2 SR with hydraulic lifters