Hi clorox. Welcome to the forum!
Really sorry, going to have to disappoint - it has a new home already. Otherwise you'd have been most welcome to it for just the postage.
Best bet is to e-mail Orange photos of the cab which identify it as a real Orange cab, serial number included if at all possible. They may then (hopefully!) be willing to sell you new badges, but they won't do this without evidence as they don't want the Orange name plastered on any non Orange gear.
Oh and a phone call to alert them to the e-mail might help - they can sometimes be 'a little slow' to reply.
Then there is always e-bay I suppose. I don't know if the badges ever come up but it wouldn't surprise me.
Beware of the smaller all in one badges as on this 1x12 cab:
That would look lost on a 4x12!
Good luck with the restoration!