Sebrights have a rose comb, so unless the sebright only has one copy of the rose gene, this chick could not be a sebright mix. Do you have any updated photos? Since this comes from a backyard breeder it may just be a mix
Sabelpoot and booted bantam are the same thing, so you kind of have :) ! I wouldn't be too concerned about the color, although admittedly I'm not really good with colors. I believe this one would be considered quail? I could be very wrong on that though