I like things put in perspective. Let’s talk cost and availability only.
Direct oiling .750” rollers, with inboard link bars so no clearancing is needed like IQ52 mentions, will cost about $600/$770 (Howard’s/Comp) Readily available as well.
If a guy wants direct oiling .800” rollers, with inboard link bars so no clearancing needed, how much $$$ we talking? Readily available?
We have everything from serious very experienced engine builders, racers, guys who will pay for the best regardless of their application on down to maybe a guy who wants a solid roller setup in his streeter that won’t break the bank yet is reliable, and maybe doesn’t want to have to clearance his block to run them.