I can't see why not. My problem with doing this is that I couldn't guarantee either of them are still working. If you are still keen I can send through some photos and you can make a decision off them. Send a PM if still interested. The offer is still there, they are free if you want them and are prepared to pay for postage.
I can still control the new winch solenoid with the factory controller, I just use a trailer plug fitted on the bullbar and controller rather than the standard connection.
On my Jeep I'm going to fit an in-cab winch control switch, as well as switches on the bullbar, so the controller is not required. I'll still have a plug on the bullbar if I need to use the controller.
These are the winch control switches I had in my previous 4by. The red missile switch is an isolator switch so you don't operate the winch by accident, and the second toggle switch operates the winch.
This is the type of trailer plug I use on the Warn controller.