In Riivolution infFace still goes in brawlmods/textures/info/portrite.
And MenSelchrFace (for riivolution) go in textures/menu2/sc_selcharacter_en.pac <-- Open this with brawlbox then open char_bust_tex_lz77 and find the miscdata holding the character you require.
About the file destination of the portraits, my file destination would look different, but similar. Here's how mine would look like:
SD: private/ wii/ app/ RSBE/ pf/ info/ portrite.