1. Remove the original armor, boots and gloves from your desired starting class.
2. Add either of the following list of equipment to your desired starting class.

Black Outfit 1

add equipment entry "UNI_BLACKOUTFIT_1"
add equipmentgroup
add equipment entry "UNI_BLACKBOOTS"
add equipmentgroup
add equipment entry "UNI_BLACKBRACERS"
add equipmentgroup

Black Outfit 2

add equipment entry "UNI_BLACKOUTFIT_2"
add equipmentgroup
add equipment entry "UNI_BLACKBOOTS"
add equipmentgroup
add equipment entry "UNI_BLACKBRACERS"
add equipmentgroup