well mate I can give you a number of a breaker that has a few ST's if its any help
freedom motorcycles : 01292880713 ( Scotland )
...personal if you straighten things you never know how strong they are when you finish, it may never brake but on the other hand it could just fall apart in the middle of a corner. Obviously if its something your not relying on to keep it upright , like a fairing support etc, I would straighten it ...but a h/bar or support ...get a second hand / new one . the other point is as you have found it is almost impossible to get it back to exactly the right shape.
...you could always make the little plunger for the switch from a small piece of plastic ,I have done this on my Kawasaki. I used a piece of plastic from a kitset model , it was a piece from one of the frames that holds all of the parts together ( hope you can understand the description!)
Good luck !
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