Custom grinds are the only way to go unless you have absolutely no budget (like me... but I try not to scrimp on important stuff)...
I would love to run a solid rolller in my new dirt car project but I would have to buy new pushrods, lifters, springs...just not in the budget. My custom Jones cam will be $243.00... I'm resurfacing 15 used lifter at $6.00 each and bought one new one for $8.99. Crower and Howard's custom grinds are a little cheaper. Make sure you get a quality core... should not be a problem with any of the aforementioned outfits.