For a BB fixed-cup and headset installation in this situation the smartest and most economical solution would be to find a really good pro shop or framebuilder who can do the job for you, and do it well. It's not an expensive job, and the associated tools are things you will likely need very, very rarely. They're the ONLY two bike setup tasks I would not do myself, if only because the tools are rarely used by most cyclists and an error can be extraordinarily costly to fix.
After the fixed cup and headset parts are installed on the frame, you can play with all the other related pieces on the BB and adjust the headset if necessary.
Research the shop & mechanic, however, before you give them your trust. You want a real expert to do the job, and to do it right the first time, with the right tools.
And, frankly, working on parts of that vintage and quality means having the right tools. Park tools are great, but Campy BB tools from that era were in a class by themselves. And probably still are.
Last edited by JML; 07-03-09 at 08:56 PM.