Rhoads lifters flat out work, in fact IMO if you're using a hydraulic camshaft for street or strip that's what to use.
6500 rpm is a breeze with the right spring.
If that fails, I'd just stick a solid lifter on a hydraulic shaft. lol BTDT
Agreed, if you could keep the benefits of a large cam for power and gain back some street manners don't really see the down side. Saves you from making a compromised choice or at least a lesser one.