Almost finished the raleigh reynolds this morning just waiting on a headset expander should be here in a few days quite diffucult to find as its for a one inch tube with an internal diamenter of 19mm, also had fun finding a carbon 27mm seat post apart from that build was very easy.
Built with mostly period Dura ace looks great and trying it on a turbo trainer gears change perfect, looking forward to a proper road test only concern is the head tube is shorter than i am use to.
Some time on internet shows these 853s where a frameset only and and could have custom sizes etc, if built custom they would have the frame builders initials along with the frame number, Could be bought as a complete bike and marketed as a Raleigh 700 and 800, the 700 could be alloy or reynolds 853 and the 800 titanium, made from 1995 to 2002 and only in there last 2 years in Raleigh special products where they made with oversize tubes.