360 running on 4 cylinders

It's #6, the leakdown test proved it right away. As soon as I pressured up #6 @tdc, air started blowing through the crankcase via the oil filler on the opposite side of the engine. If I plugged that, it came out the dipstick tube. Also with all my running and testing, I found oil in the intake manifold now and it's burning blue out the passenger side all the time. I took a video of it running with the vacuum, but it's not needed now. Time to investigate whether I want to spend the time and money for a bottom end rebuild or go a different route. I've replaced rings on a Honda 750 motorcycle and a Dodge Colt 4 banger, just not sure if I want/should keep this. I've already poured what I paid for this car to get it on the road and safe to drive. Now it a question of replace or rebuild.

BTW thanks FABO for all your helpful suggestions. The leakdown test should have been the second thing I tried, not the last.