Changed my mind

I have decided to put the 440's that I just bought into the shed for future considerations. I am going to look for a wrecked Durango/Dakota/Ram truck and put the fuel injected 5.9 and trans into my Scamp.I am sure this has been done lots, so any and all info/tips on what I am getting into would be very welcome. BTW I say 5.9 because I think the newer 5.7 hemi is out of my budget. Please share all your info.
Thanks
Don