Check out Darren Bundock's T site.
They built a simple tilt trailer for their T that they just fool around with in Australia. The key is the axel wheel base which must be much wider then a standard beach cat trailer (a power boat trailer is a good platform to start with).
All I can say is... if you like working on boats... then a tornado is the boat for you. It turns out that there is always a better way to do something on the boat and so you are never short of projects.
The biggest drawback to a recreation sailing a T cat are the centerboard gaskets. You shouldn't simply beach the boat for lunch. The sand will chew up your gaskets and require freqeuent PIA changes. Now, if you don't race... you can probably go for a while on trashed gaskets and when the water swooshing up the centerboard trunk bothers you, its time for some maintenance. The biggest plus is that of all the 20 footers out there... the classic T is the best boat for a big breeze and can be sailed with your girl friend comfortably. I would not consider the boat if you must build and take it apart for every sail. If you join a club and can leave the boat together they are great boats.
Jill Nickerson of Fun in the Sun is the Tornado dealer/ expert and Greg Scace has been in the class for ever and can fill you in on the older boats.