There are nice polished stainless shifters that are copies of the original with a non functioning tee handle.
I would start with one of those.
Then you can make up a new mounting tab, cut the shifter and weld it to the mount in the postion you like.
I have done this on a couple of cars with no problems.
I did this exact thing with this car to put the shifter handle exactly where we wanted it.
Richmond 5 speed