YASHIO FACTORY rear fenders

[Strider]

Okay, well i'm about to order these rear fenders from a friend. But i need to know, if i do order them can I use a different bumper and side skirts? or do i have to use the yashio stuff.

[FRpilot]

looks like the whole kit is sold as a yashio kit. doesn't look like you can use other stuff because it wont match up, unless you do bodywork.