Mig-21 FS colors

I'm looking for the correct colors to use on my Mig-21. I'm having a hard time finding the FS colors that are listed in the instructions. Dark Olive 24098, Pale Blue 25550 are two colors that I cannot find.  The Soviet colors offered by MM have entirely different FS numbers. Also the instructions say paint the interior med. gray but everything I've seen and read says to paint it light blue. Can anyone give me the proper colors to use? Thanks in advance.