rear number plate mount

[Grayo]

As winters fast approaching im wanting to tackle a few jobs while bike will be garaged for a few months and im wanting to do a way with the  bulky no plate mountings and im wondering what other members have done as the undertray and no plate looks like one moulded piece? is there a mod you can get to achieve this? or what way would you go about this.As i dont really want to start cutting the original undertray and fuck the job totally. oh and its a gen 1

There are lots of places you can buy an aftermarket undertray such as Pyramid, Skidmarx, Justbandits, Etc.
It's a long time since I had a Gen 1 but if I remember rightly you will have to cut the original undertray in order to retain the battery box. I could be wrong though and I'm sure someone will be along to correct me if I am.
I've changed a few undertrays on different bikes where I've had to cut the original.