Just remember that some of these dyes are not easily gotten and if available will cost about $100 / gram. There are few commercial sites that offer such dyes. Kodak, Fuji, Ilford etc. will not sell them at all. At one time, Kodak listed about 15 of them in their catalog, but no longer.

One gram will be nearly a good supply for 2 reasons. You use very little dye in one experiment and the dyes have poor shelf life even refrigerated or frozen. This is especially true of infra-red dyes.

I'll leave it to Ryuji to tell you where to get them.

PE