I double checked the endplay with a dial indicator. First measure the bearing widths (both halves), then measure the width of the opening in the crank, thrust surface to thrust surface. Do the math. That is the theoretical end play you will have. Once it is assembled, check that the endplay is at least close to that number, I'd say no more than 0.001" smaller. Optimally, it would be the same, but due to stack up of tolerance issues I doubt you will get the theoretical number. Move the crank back and forth in the block with a prying tool and measure the movement with a proper dial indicator setup. It doesn't take a lot of force or banging.
If it's off by 0.005", you know there is a problem.