Dumb chassis question from a noob

[**grumpy**]

Hey all.
I hang mostly in the 60-66 group, but also in the 47-59 too. My bare steel suburban that lays on the running boards is nominated in dec's TOTM.
Well, it was mine, I built it. But have since sold it to a guy in AR.

Anyway. I have, what is most likely, a dumb question.

I went to look at a real clean 72 GMC lwb truck, minus it's bed. It's a leaf-spring rear as most know.

If I buy it, I want it slammed. I mean, laying out.

So...Is it feasible to just remove the leafs and r.e. and move the r.e forward, and add a big notch, and relocate with a tri-angulated 4-link?
What I'm asking is...Is there any reason I can't just shorten my wheelbase to swb length using the lwb frame?

It would need a decent sized notch, and I can make my own crossmembers to locate the tri-4

Then I can find a shortbed or shorten a longbed for it.

I'm sory if this has been covered before. Honestly, I didn't search it out. I'm at work on my bosses computer, so it's SLOOOWWWWWWW.

Thanks, and I appreciate it
Tim