What is the wheelbase length of a '67-'72?

[Belman]

Hello,

I'm wanting to know what the wheelbase dimensions are of a '67-'72 3dr Suburban? Also, I am wanting to know how crazy I am, I would like to put the body of a 3dr on the chassis & drive train of a '02-'06 Chevy Duramax diesel 4x4.

The reasoning for doing it is because I love the looks of the older vehicles and I need a vehicle that will easily pull my toys to the desert and be able to use as a daily driver. But the price of gas is pushing me away from a big block gas engine to a diesel that has a lot of pull power and gets better mileage. The diesel will also allow me to run bio-diesel. I have a couple of friends that have the Duramax trucks and they can pull a house flying down the road and still get good gas mileage. But they've paid nearly 50K for their trucks and I don't have that kind of money or desire to have a truck that looks like everyone elses!

Has anyone here done this conversion/swap? What do you all think, am I crazy for considering it?

Thanks.