92 CC 2500 Diesel intro a Mud/Rock truck

I have a beaten (bodywise) 92' Dodge Crew Cab Diesel, and I'm thinking of getting out the sawsall, Iroc's, gears, spool, small lift, Doubler kit ect. My big concern is length and weight. I was thinking about shifting the motor et al back 8-12" to distribute weight better, bobbing the read frame and making a 3 or 4 link. Would you put the effort and $ 6-8K into a rig like this? Do you think its worth while? BTW the truck is mine already I didn't have to pay anything for it.

[DODGEBOYS]

l,d leave the motor were it is and shorten the rear till the tires just about touch the rear doors