Yes pretty much all of it. Everything else you can get from add ons by just joining the server.
Originally Posted by Teny
Was the stacker tool one of the addons or did it came after you installed another game that was supported by gmod?
The stacker tool was an add on.
That's where i get them from, mostly all of them you are just extracting into the add ons folder.
Advanced Duplicator (saves whatever you made to the server) and weight tool with wire mod.
To download wiremod
Get a suitable SVN client (Tortoise SVN is a good choice: http://TortoiseSVN.net
Make sure you remove the "wire" folder from inside your addons folder
Create a folder in addons called "wiremodCO"
If you have Tortoise SVN, right click the wiremodCO folder, and choose "SVN Checkout"
Enter this address: "https://wiremod.svn.sourceforge.net/svnroot/wiremod/trunk/" If prompted for a username and password use anonsvn for username and anonsvn for password. You can also use this autolink, if Tortoise SVN was installed correctly: Tortoise autolink (for advanced SVN users!)
After the download completes, move the following folders from "[all your folders]\garrysmod\addons\wiremodCO" to "[all your folders]\garrysmod\addons":
wire model pack 1
Delete the folder "[all your folders]\garrysmod\addons\wiremodCO".
(Don't worry, svn puts database files in each folder to keep track of things, you don't need the original wiremodCO in order to continue using SVN)
To install PHX3
Create a folder in add ons named phx3 exactly like that
SVN check out with this link
and wait for it to finish downloading