I had good luck with shipping my 7300 and my 6500 "back in the day" -- but I"m talking about
over ten years ago, so there was a time it made sense to ship all this stuff.
I bet it can still be shipped fine, but it can't be shipped fine particularly inexpensively, since you're going to need big, well-packed boxes that can protect these things from being dropped and jostled. Long gone are the days of pulling like five machines that were wrapped only in newspaper and one layer of peanuts out of a single box.
Avid is a company that makes video editing software and hardware. They still do, but today, computers are powerful enough to do most video tasks without any assistance from special hardware, and cameras put video files directly onto cards and disks that can be read with USB adapters.
Building "an Avid" basically up through the G3 era meant stuffing a Mac with more than three slots completely full of cards. Usually there's a video in/out card, a compression board or two, and at least one SCSI card, possibly also a video card for use with a big monitor.
Big video editing systems, or, say, something to do with Rockets, or something like the Symbolics/Genera card are probably the main reasons to ever get such a big system. Nothing on system 7 outside of these things, or using OS 8/late'90s era Internet applications has a practical usage for much more than about 32 megs of RAM on a Quadra.