Not a difficult rebuild, order a rebuild kit and follow the directions. One thing that you want to pay close attention to is the wells in the bottom of the body, they can become loose and leak. With that said if you can get them off and clean them up and get a good 2 part epoxy for automotive use and re-glue them in place that would be a good thing. If you do this make sure and let the body sit for a couple of days to be sure the epoxy has sufficient time to set up. Clean everything else and blow all of the passages out and reassemble. Pay close attention to what comes in the kit, I can't recall but I think I had to order brass floats separately.

Here is a link that might be helpful.
http://www.moparnuts.com/images/stuff/Tquad2.pdf

Here is another link that might be helpful.

http://www.carbkitsource.com/carbs/tech/Carter/TQ-index.html

And of course you can check with Scott at http://www.harmsauto.com/ he is on this board.