Welcome to CHR hemi-boy.
Post a lil bigger pix ,if'n you can , of your ride there, so we can see.

and about the engine... I'd stick that 4.7 L, out of that Dakota Quad in it.
or find you a newer dodge, cheap ( body damage at salvage ) and switch out the computer/motor "and amaze your friends"

It's about the work and time "you have" to put into it..... Oh ya money .....

either way is good ! as long as it doesn't sit and go to waste...
hope you have fun here.