I wouldn't be reusing the rod bearings from your old engine (even if they are recent), what happened to that engine again? Was it a broken rod? (can't remember).
Rod bolts on the unaffected cylinders would be ok to re-use, but if it broke a rod, probably not on that one.
(PS I see you have a VW 412 in the garage! I remember my father had a
412 Variant in the late 70s, they were rare then (here in the UK anyway), so I can't imagine how rare they are now! Is your one the estate version?).