Everquest1 Budget Single Machine 6-Box?

[Krusader]

I have looked all over the site and have not found anything more recent than 2010 regarding a hardware setup for a single computer 6-box in Everquest 1.

I am asking if anyone knows what computer, stock or built, would meet the requirements as follows for the "1 Desktop to 6-box", as I already have the other machines.

My plan:
Hardware
1 Desktop to 6-box
1 Laptop 3 box
3 Desktops (Cheap) 3box each
Software
Plan to get ISboxer and link the 5 machines, once I figure out what I need for my single computer 6-box.
Graphics
I am not overly concerned with graphics. I do not need shadows, to see stars in the sky, etc. My main concern in functionality, I would like to be able to see reasonable distances, and clear enough so the game does not look like a 8-bit Nintendo.

I am not computer savy at all. If there was a guide somewhere on the how to overclock, adjust graphic card setting, etc. I could do it. Without a playbook, I would not know where to begin.

I am not looking to spend a bundle, under $500.00. I also, do not have any extra windows software discs lying around.

Everquest is an older game and I am sure it does not require top of the line products, but I just do not have the computer knowledge to know what is important for this specific set-up and what is not.

Any assistance would be greatly appreciated.