Steering column

Hello everyone. I'm looking for power steering column from a 1969-1970 Plymouth duster automatic with power steering. I'm changing the stock dash to a rally dash. I bought the harness, but my mechanic says that the column needs to be replace as well. Anybody has one for sale?
I believe you need to find out exactly what you are looking for. A steering column for a 69 a body is very different than a steering column for a 70 duster. The keyed ignition on the 70 being one difference. By the way I believe 70 was the first year for the duster.
Also you can rebuild the one you have with a few parts and some effort.