I'm looking to put some pillion pegs back onto my RVF, forgive me if this is a daft question but would the NC30 mounting brackets fit the NC35? I'm thinking of the ones without the integral exhaust hanger on the left.

It's the general shape as they curve under the rear bodywork that is of interest. Re-drilling the mounting holes or even making up adapter plates to carry them would be feasible - as long as they are going to end up in about the right place.