that's gorgeous, lucky fella. a proper bike for my preferred era
looks like a concor saddle?? i'm certainly no expect but looks the real deal, stays are stamped, fork crowns have the clubs..
personally I'd tend towards a white turbo or rolls saddle, white bar tape and the original gum hoods (reproductions are normally easily had on fleabay). Are the rims gold labelled GP4s? or MA40's If tubs, to complete the look, necessary to neatly fold a spare tub, wrapped in a little rag (to stop the strap wearing the tub wall) and attach under the saddle with a toe clip strap.
I like brooks saddles, but in the 80s they were generally to be had on touring bikes and not racing bikes and this is racing bike, but your bike, your choice fella.
are those simplex/mavic shifters?
well jealous enjoy