Hydraulic camshaft with bushed lifter bore question

Kind of hard to imagine planning on going from a roller and then to a hyd. Not going to race it and just street drive it? If it's a factory block that has had bores bushed, you might just consider getting another block, as I would think the lifter bore machine work cost more than the value of a stock block and you could likely sell the bushed block, if properly done, for more than the cost of using another block and boring for pistons.