Still looking? I have in my loft a Harry Hall 24in Gran Routier frame which I purchased brand new about 20 years ago and never used. It's for 700c, cantilever bosses,531db and forks,headset fitted,Campag horizontal ends,black enamel. If interested discuss firstname.lastname@example.org.Located west Blackburn,Lancs.
Bump. Haven't had luck finding anything so far. Checked the EU market and there seem to be a lot of potential models:
Koga Miyata Gents Touring, Terraliner etc - there are many canti models
Giant Squadron, Custom
Univega Via Carisma, Via Montega
Raleigh Pioneer Trail (although I don't know the frame material)
Honestly, anything that has a frame made out of decent steel that's not hi-ten will do
The wider tires the frame fits, the better.
Measured myself up and the frame size must be around 58-60. My inseam is a little bit more than 49% of my overall length.
Edit: Forgot to mention that the seller should be willing to ship the frame (if in UK, then locally).