Red Hair Dilemma

I have a hair delimma, I’ve been coloring my hair at home using eSalon permanent color for a lighter, medium-golden brown. I got tired of the light brown and colored my whole head with a Garnier permanent box color to a dark, ruby red. I wanted to go lighter red so I used Oops color remover on the dark red then colored my whole head with Schwarzkopf Vintage Red permanent hair color. The color is absolutely beautiful. I realize now, though, that using Walmart box color isn’t the best for my hair.

So, here’s my totally unprofessional but YouTube inspired idea.

I want to use L’Oréal HiColor permanent color in magenta (pink based red) to color my roots, let it process 20 minutes, then run the rest of the color through the length of my hair (over the Schwarzkopf), process the remaining amount of recommended time, and hope it blends enough.

I want to use Ion Brilliance Color Brights semi-permanent (in a mix of red and magenta pigments) to refresh my lengths between root touch ups so I can maintain this color FOREVER!!!! 

So, there’s the plan. BUT, will it work??