The 67 console should fit. It has a textured plastic base whereas the 65-66 had smooth plastic.
The 3 speed console (67 GS) uses a much different shifter than 2 speed versions.
You can modify the 2 speed shifter to work by drilling another hole for the upper shift rod and moving the rod closer to the pivot point. This will increase the shifter travel to accommodate the extra 1 and 2 positions.
You'll also have to bend/grind the shifter lever under the floor to make more clearance for the trans housing.
Another option is to convert the shifter to cable operation using a kit from ShiftWorks.
http://www.shiftworks.com/buick.htm