PAG 46... call it a day.
look at TSRM for spec on amount of oil and weight or R-134a.
If you are looking at oil, that means system open to elements, replace dryer canister. Evacuate system. Use a good quality R-134a guages. While you are at it and before refilling, change the R-134a valves in the ports.
If using cans, add 2 oz additional per can for hose overage. (ie if system calls for 24 oz, that is two cans but with the gauge needing about 2 oz itself to fill up with r-134a, you are looking at 28 oz total or THREE cans not two).
On the oil front, Add 50% of the total to the compressor, 20% to the evaporator, 20% to the condensor and 10% to the dryer. This is using the TOTAL system oil!
Do not use selanants, stop leaks etc!!