Anyone knows if a 900 ST2 or Monster 2001 engine fits in the 750 frame?

My 750 stock needs replacement soon and these are alternatives.
They are fuel injected, but that is no problem since my Paso is converted to FI/megasquirt.

//A

everything is possible with some modifications. The front cylinder/engine mount may not be in the right spot as the 900 cylinders are higher but the main problem will be fitting the swingarm

Luca Cerani made this switch and posted the photos. Different measures on the rear bolts, more room for the swingarm and some trouble with the exaust with a SS900 engine. More he modded the airbox.
I think it should be easier to find an Elephant 900 engine and restore it

ST2 engine is fuel injected and water cooled, a very hard job!