Actually I think that is what I'm looking for, you said "But in your case this is not applicable", you mean in the 24v transformer itself? That is not possible, but I could make another 127v - 127v transformer. I think I will try to build something like that. I have some old transformer cores around, E - I plates, I could cut the middle "leg" from E plate and then move it as you said. Not sure if it will work, but I think I'm gonna try that.
Problem is that a fuse will cut the current, instead I need to keep the thing "working", even if it is short circuited, to see if there is any chance of things catching fire.