oxford tailpack is fine. I left my pillion pegs on so I have something to bungy to then the rear bungys go round the metal plate bracket, no bodywork contact at all, the little bobbins under the seat are in a bad place and I'm pretty sure they'll cause the hooks to rub on the seat unit if I use them....
Also have a bagster tank cover and bag, off ebay for £60 for the two parts, but I was lucky. Bagster also doubles up as something to help grip the tank with and knee cushioning, yay!