Molnar's don't require a ton of clearancing , and that can make a difference..........I have experience with the small block versions , but I think it holds true for others too.
Rod bolts should be mentioned too. For clamping consistency , use the best you can afford , or spring for the upgrade if you are ordering a set.
ARP 2000 over standard chromemoly for sure.
L-19 might be over kill for your deal.
The high end rod manufacturers have proprietary bolts in many cases and what they offer is plenty good.