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You're ok on the oil. If you do open the system again, get a variable orifice tube from a 134a system (94 or later). You shouldn't have to replace the drier since it is new and you're just going to pop the system open long enough to swap the condenser.
You will need to add an ounce of oil to replace what is in the condenser. That said - I learned automotive a/c back in the 60s and have been following the same guidelines for oil replacement ever since. 3 oz for an evaporator, 1 for a drier, and 1 for a condenser. That may have been updated - if so, 444-4D will correct the amount.
2003 F-250 XLT Crew Cab 7.3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM