If you don't have mudguard eyelets there are models of mudguards designed to be fitted to such frames (examples).
For luggage the Podsacs range sold by PlanetX seem to be inexpensive & reasonably well made. I got a bar roll - not in the current range - & a couple of dry bags in a sale a while back but they haven't been used extensively yet to give a proper verdict (the short tour I was planning has kept having to be postponed for various reasons ).
Alpkit also do bike stuff that seems good & is less expensive than many of the big brands - I got a Koala 13l seatpack last year which rolls down quite small when not full but will swallow a fair bit of kit when the need arises. They have two shops where you can actually see the stuff if you are within striking range of either Ambleside or Hathersage.
Bike and other kit
Re: Bike and other kit
Former member of the Cult of the Polystyrene Head Carbuncle.