Can R22 be bought with a 609? If not, are there any alternative drop-ins that can be purchased with a 609 and used in its place? What type of oil is compatible? Anyone ever convert to R134A successfully?

__________________
08 W251 R350
97 W210 E320
91 W124 300E
86 W126 560SEL
85 W126 380SE Silver
85 W126 380SE Cranberry
79 W123 250
78 W123 280E
75 W114 280