Thanks for the quick reply.
Don't think the custom mudguard will fit - I thought there might be a 'universal' one out there of the right dimensions...if not my jig saw, file and sandpaper will have to come out!
It's currently lying on the garage floor in bits ready for the custom re-spray next week, as soon as it's done I'll upload a pic or two, should look really cool once it's sprayed...then I just need some sunny days!