Steering column floor mount - how to make a reducer bushing ?

I need to use a short 17 inch column in my 36 to keep the dash position right.
The shorty column has a 1 inch DD shaft end to adapt to the steering shaft linkage.
The only column mounts I find seem to be either 2 inch or 1 3/4 ID.
Anyone know of plastic or br*** bushing that could reduce this type of mount to
either 1 inch or 3/4 inch?
Still working out the final linkage to the steering rack.



http://www.summitracing.com/parts/SUM-772820


Still working out the final linkage to the steering rack.
Thought about drilling the firewall/floor hole only 1 inch and using a rubber
grommet but that means brackets for a rod end or something substantial on the inside when it would be much simpler to just sleeve a standard floor mount.

Ideas?
Found some posts for some homemade ideas but none seem to fit my problem.

 

What about using something like this if you dont need it polished..

http://www.grainger.com/Grainger/Flange-Ball-Bearing-5X708?Pid=search

 

Nice item.

 

Speedway has a swivel type bearing flange mount ( similar to above) for running 3/4" shaft through floor/ firewall. Used in race cars mostly. You could cover with like a shifter boot.