Rich has the real thing.
I did a fake.
I have a normal teleflex helm, but put it in front of the bulkhead, rather than immediately behind the dash. I had an old steering shaft that fit my "vintage" wheel. I fabricated a simple coupler to connect the old shaft to the teleflex helm. All of that is inside a tube.
The pictures aren't very good, but you can get the general idea from the website link in my sig line.
Here's my result...

Good luck...
_________________
Bruce.
~~ Do what you love, and love what you do. ~~
~~ To me - only my boat is not yet perfect. Everybody else's is to be admired for I know the path they have walked (Dave Lott, 2010) ~~
Dow's Monaco Project