Hi Minijohn,
thank you so much for your input.
I'm a bit pissed off at Mr. Nanni...
I was made to believe that this was just a simple swap job... I feel quite gullible.
All those parts you've mentioned, are there on Nanni's website, but they appear as part of a converting kit for Fiat 500. Was there any Fiat 126 version that had this steering rack as standard? From the FDR ricambi site you sent, I got the impression that the 126 BIS had it...
Anyway this is going to be more complicated than I thought... I'm no experienced welder... I'm not quitting on the idea, but something for a later date perhaps, (also because I have no place of my on to carry out this).
Do you happen to have any photos of your handy work, for guidance purposes...