5.3 4l80 71 chevy

[v30crewcab]

I got a 71 c10 longbed, and I am looking to drop a 5.3 4l80 in it. Can you do it without a high hump if you move the motor and trans forward, and if you do that, will the driveshaft fit without shortening? just trying to plan ahead a bit. I have a high hump, but if it will fit without no reason to use it.
I know I'll have to change the slip yoke to a 32 spline.
Also, since its already auto, I assume I can reuse the trans crossmember and just move it? Thanks.