From a late comer to the party, Good for you, glad you got it fixed.
I wrestled with installing a new oil line feed to the rockers through the block on my 49 216 about a yr ago. Resoldering wasn't an option so I replaced mine with a kit from a popular on-line supplier that's been mentioned. Everything needed was in the kit. Took me approx., 4 hrs start to finish as I'm not as nimble as I once was.
I can't tell if you replaced the line or if you were able to resolder the existing line, but in any case it sounds like you've got it and clean internals to boot.

Dave