The Vitus fork is shorter, so the front of the bike will drop down and head and seat tube angles will be steepened. IMHO, no currently manufactured fork except for custom steel ones would be a good match for a Teledyne; they were designed around Campy/DA long reach (47-57mm) brakes. I'd look up the longest-tenured custom framebuilder in your 'hood for a well-designed fork for that Titan.
I recall from past exchanges that it is acceptable to interchange English and Italian threaded headsets as long as it is a one-time process rather than back and forth. If it will work, I intend to use an Italian threaded Campagolo SR headset on an English threaded steerer. Any preparations or precautions of which I should be aware? I assume that the steerer will realign the threads of the locknut and all will be well.
Transplant candidate is the Teledyne Titan stupidlight project frame. Choice of forks are either the ca. '78 531 Reynolds Trek replacement fork that I purchased to replace my Viscount's death fork or a Vitus aluminum fork. DOn't know when the Vitus forks first showed up (early 80's?) so the steel fork will probably get the nod. Opinions?