I think you wont get any real change in the feel if you bend it. The curve at the top will probably still be there, and if you straighten the whole trigger the reach will become quite a bit. Didnt Tanfoglio have an Action Shooting version of the CZ-75 set up like this in the mid-90's?
Ive seen cast parts welded before, and I dont feel MIM makes it impossible. The skill of the welder is the most imprtant thing. A friend of mine who was a SAAB mechanic did some amazing welds putting basepads back on some MagPack magazines for me back in the day, and those welds had a bead about 3/32nd of an inch when he was finished. If youre still leery, have the trigger blade silver soldered on.
Ive considered the same thing with my two Ruger Bisleys, to get the reach I would prefer. That and the Ruger triggers look kinda goofy being so far foreward in the trigger guard.