When deciding, consider that a lot of places will do 'stainless lines' but the banjo fittings are likely to be aluminium or plated steel unless it states otherwise.
With Venhill you can fill yer boots with shiny stainless fittings.
They'll do premade sets, measure your lines and get them to make them or buy the parts and make them yourself if you're technically competent.
Used to keep a drawer full of all fitting options in the workshop because as has been said before, makers (and owners) change so many parts. I wouldnt recommend uncoated braided lines though. Will go through stuff like a round file.
Soon to get bits for the R1100R.