Following is a list of RLM and matching FS numbers. GO to your Benjamin Moore dealer and they'll match (Latex) and mix for you at $10/12 for 29 Fl ounces. I have some unused RLM colors available from my project.
JG
RLM 02 Primer Grey: FS#16165
RLM 04 Yellow: FS#23538

RLM 23 Red: FS#31302 or FS#31136

RLM 24 Dark Blue: FS#35053

RLM 25 Bright Green: FS#34115

RLM 27 Yellow: FS#33637 or FS#33655

RLM 65 Bright Blue: FS#35352

RLM 66 Black Grey: FS#36081

RLM 70 Black Green: FS#34052

RLM 71 Dark Green: FS#34079

RLM 74 Gray Green: FS#36081

RLM 75 Grey Violet: FS#26132

RLM 76 Light Blue: FS#36473

RLM 78 Bright Blue: FS#35414

RLM 79 Sand Yellow: FS#30215

RLM 80 Olive Green: FS#34096

RLM 81 Brown Violet: FS#34083

RLM 82 Bright Green: FS#34138

RLM 83 Dark Green: FS#34083