Getting world vector on mouse position

[DahDestroyer]

So I am in need of some assistance with a mechanic of a gamemode I'm working on;
I have a top-down view of the player, like this:
[IMG]https://i.gyazo.com/17cca0062967cc56bdaf683fb8278a70.png[/IMG]
(It can only be rotated via WASD)
The above is done using forced 3rd person (simple thirdperson addon / calcview)

I wish to be able to get the x,y,z of the world where the mouse clicks, so I can then make the player move to that location (Using nextbots - but that's a different story altogether!)

Here is my code so far:

--[[ CLIENT ]] --
hook.Add( "HUDPaint", "ViewTraces", function( )
	local td = { }
	td.start = gui.ScreenToVector( ScrW()/2, ScrH()/2 ) -- center of screen (I assume this is needed because the calcview rotates the view?)
	td.endpos = gui.ScreenToVector(gui.MousePos())
	
	tr = util.TraceLine( td )
	
	local st = td.start
	local en = tr.HitPos
	
	surface.SetDrawColor( 255, 255, 255, 255 )
	surface.DrawLine( st.x, st.y, en.x, en.y )

end )

concommand.Add("a", function()
	net.Start("MoveToPos")
		net.WriteVector(tr.HitPos)
	net.SendToServer()
end)

--[[ SERVER ]]--
util.AddNetworkString("MoveToPos")

net.Receive("MoveToPos", function(len,ply)
	ply:SetPos(net.ReadVector())
end)

No errors, just the position is always returning
HitPos = 0.127707 -0.571862 -0.810348

SOLVED:
I was under the implication that EyePos() was the bone position of the eyes, turns out its based on calcview, so I overcomplicated things I guess.
Upon reading the following:
[url]http://wiki.garrysmod.com/page/Global/EyePos[/url]
Example 2 was basically what I needed