Some More Interesting Craigslist Saws Etc.

Shower curtain for sure. I have seen a couple of those swing arm gravity saws before, I think Covington even sold a more contained version way back when, I was thinking it would be a deal just to get the blade till OMG ALL THOSE HOLES DRILLED TO DO WHAT???
The tub is still worth well over $200 to someone with skills to assemble a Mojave/Royal style set of guts in it to make it a real slab saw, though it will function as a basic rock chunker as is. And that motor!
Too far for me even if I didn't now have 10 (!?!) slab saws in the stable with 7 needing at least a little assembly/repair/building, plus negotiating with the seller of 2 of them for a LARGE parcel of project equipment locally.
With the correct vice, $7k would be maybe okay for a plug and play 36 inch, they are indeed hard to find. I'm guessing the original vice was broken, the design has some features that are prone to break when used by less mechanically savvy folks, who you will generally find among the "trained operators" volunteering in a club shop. If the cross feed base is intact a HP/China vice may fit it.
Not a gravity feed guy so no comment on the NV saw except to say the Royal style carriage is a good one. Current saw pricing makes it a pretty decent deal for someone who can install the screw feed, about 20-25 hours and maybe $300 in materials.