Thanks for the input. New seal is in, cap torqued. Just waiting for the new oil pump only to replace the original. The plastic shaft connector was brittle and now broken. The seal was fairly brittle as well (hence the leaking oil).
The oil pressure was always fine, cold or at temp. My hot rodding days or over and now I am about longevity (me and my truck
. The engine appears to never having been rebuilt so I only mentioned the 10k mile rebuild because I'd probably rebuild it when and if it starts using oil, fouling plugs etc.
As clean as the engine and tranny is, I cannot imagine that neither have been rebuild, though I can not find any indication that either has been. Except maybe for the 001 bearing. Maybe they put those in at the factory depending on tolerances?
I am resealing the transmission as well without a rebuild. My theory is the transmission leaked so badly it always had a supply of fresh fluid.