Short answer: Yes. But considering all the time, trouble and $ you'd spend on such a project, you'd be better off just trading in an SE for an SRT8.
426 hemi will fit or any new engine dodge makes will also fit.
the engine will fit but the computer will be different.
sure there is plenty of room for it but you will have to weld in new motor mounts or use engine plates to mount it.
426 hemi or a 440 would fit real nice with no problem, a 572 crate hemi will also fit.
Not without major modifications.
will a firewall from a 73 dodge charger fit a 72 dodge charger
No.
In the new charger 5 will fit.
No.
A Hemi will not fit in a 2000 Ram with out major modifications.
The 5.7L Hemi was an available engine in 2005.
yes it could fit