Did you post mikeage on motor?
When you say wet compression test, do you mean with oil in the chambers? If so, seems to me that would yield artificially high readings, which would mean you really are losing oil down the bores (which would be my first choice given the symptoms). That's my 230 am insomnia response.
Can we assume head was rebuilt properly with parts properly measured?
Bottom end refresh for 1k is unlikely to include even the el cheapo off-shore pistons. Problem is potential scope creep once its apart and all measured. New rings will not compensate for loose pistons. That adds another thou.+.
Maybe crank needs to re-ground. New rings on old loose pistons might give you some short term relief.