Anybody know where to get a good deal on a surplus canvass tent. Got a line on some primo hunting ground and need a place to stay when I’m out there

This will beat the hell out of a old GP small.

https://www.davistent.com/product/go-tent/

I've only seen the GP Medium and GP Large for sale much online, as far as US surplus goes.  Some decent-sized foreign tents pop up for sale from online surplus stores sometimes.  2-man (pup) tents are still available, but I don't recommend using those if you have other options.

I bought a boy scout canvas wall tent (it's about 8'x10') off someone in my WW2 reenactment unit, and I like it.  The boy scout canvas tents are good to go, if you can find one.  All the reenactors use Krylon camo spray paint to the scout tents OD green, and this works surprisingly well.

https://www.usmilitarytents.com/Surplus-Tents.aspx

I have a 10x10 pop up canopy. You can buy tents for pop up canopies. My next tent will be a tent for my pop up. Only takes a couple mins to set the whole thing up and they are plenty roomy for a few cots.