Your best bet for an all-chrome, steel, lugged 700C fork is from Soma. You're lucky - their largest size is 230mm. More importantly, the threads are only 50mm long, not 100, so you won't end up wrecking the fork the minute you put a stem into it.

They're expensive ($149 for chrome finish), but most suitable for a Cinelli SC.

http://store.somafab.com/sothfo.html


On my '83 Guerciotti:


Workmanship on these forks is excellent, considering they're generic replacements.

-Kurt

P.S.: Don't mind the carbon folk - I dare say they didn't bother to read your entire post.