IMO you should avoid a solid roller. They are expensive high maintenance things. Figure on spending $600+ for good lifters, $300+ for the cam, $500 range for good springs that will need checked and replaced every so often (same goes for the lifters). Other things to consider are cromemoly pushrods $200+ range. Light weight valve train components such as titanium retainers $200+, titanium valves $100+ each, I even put titanium locks in my roller motor.
To run a solid roller and get the most out of it with reliability corners can't be cut. The valve train needs to be absolutely stable. No flexing, no floating. Valve train instability with a roller = parts death.
Some will say you don't need all this expensive stuff if you run a softer lobe profile. I say whats the point of running a roller if you can get similar valve action out of a .904 solid flat tappet lobe with a 1.6 rocker arm.
