Save a world, make a new one

What's the best way to totally backup a world state and roll a new seed and size?

I want to be able to put things back exactly like they were if things don't go right.

 

Sorry, let me clarify. Not the buildings and such, I'm more concerned with this scenario:

Say I have Procedural Map_4000_1671088 as my Save entry for my current world. Which I do.

Is there anything else involved to back up for the world, not the players? I of course have full FTP access.

From experimenting, it APPEARS this is all I need to grab. Then, to put it back as it was, I just remove all the other saves and put this folder back in place.

I'm just not sure if there's a better way to do it.

 

Yeah, player base is already aware. I use the inventory save plugin, and manually backup all persistence data before updating.

Tying into the other thread you answered, now all I need is a Seed database like Minecraft has so I can find a seed with more Radtowns!

I really appreciate the help, thank you.

 

This is pretty slick. Am I missing a toggle somewhere to show rad towns?