Having acquired a 58cm (23" in proper money) Bianchi Proto frame, c. 1990 in Columbus Max tubing, I have found that sourcing a fork with the correct 'crown' profile (I put the word in inverted commas as it should have no discernible separate part) from anywhere.
I do have my wife's bananas mates in Italy on the case but they have, thus far, drawn a blank.
I realise that this may be the wrong forum as I am in the UK and need to keep costs down as, because of traumatic brain injury, my income is very limited (yeah, yeah. Sob, sob. Bleedin' cripples).
Should anybody have any leads on such, I would be most grateful.
Cheers,
John.