I have a 2010 TC Passenger that I took one of the rear seats out of. I gave it to a friend to try to fit in her 2013 TC cargo. All the mounts are there for the seats and seat belts, but there is no footwell. The rear passenger has to sit with their knees up by their chest... not ideal, but it works.
There are aftermarket seats and jump seats which have built in seat belts and headrest. A lot of options. But you will have to decide for yourself if it is safe. Your state's vehicle code may have something to say about it also. But as for function, they will all be functional once you have measured and factored in your available space.