Larry, If you go the salvage route, you could be in the same boat in a week, a month, or next year. I would go new if you have the ability to install new parts. I searched my receipts and can not come up with part numbers for you. I do recall replacing the lock cylinder and a housing called a module.
Once in the column, you will have to drill out 3 screws. They are made to break off when installing. The head is broke off, but a shoulder holds the module in place. I believe that makes it harder for thieves to steal your car. When I installed the new screws, I didn't overtighten them so they would not break off. I figured there would be a next time!
You may get by with just replacing the lock cylinder, but mine was beyond that. The new lock cylinder was to loose in the module.
If I recall correctly, it was less than $60 for all the parts needed.
Good luck, James