I've been running the Dude Server on Windows for years and my config has grown to over 500 mb. 4 beta 3 corrupts about every week or so and I need to resolve this issue. I'm new to RB OS so I was hoping someone with experience could tell me what I need to purchase to run this large Dude Server on. Any and all suggestions will be greatly appreciated.

No need to purchase anything. Try chr for free and check whether it works fine for you with your current hardware. Then you will know what you need to change, if anything.