Cummins reman cm871 worth it?

[DasAutomatik]

Need a new block it’s a cm871. Long story short My newly rebuilt motor with only 45k miles has an internal crack in the block. Bought everything from a reputable aftermarket place online which consisted of a reman block, new head and aftermarket internals. I know. Bad move. Well I’m paying for it now. Soo I got my quotes from cummins. I can get a new block, reman head, reman short block, reman long block, or a complete reman motor from Cummins. Are the remans worth it If I get a complete motor? It’s 46k plus core. Or am I better off just getting the new block and reman head and putting it together with oe parts. I’ve read a few years ago that remans weren’t being put together for longevity. Not sure if that’s still the case now.
Thank you