You are being too timid here. The problem with this walled garden is the insane amount of redundancy. 
 Each article begins to ramble about the Kambojas in general and how great they were, repeating the same old sources. We need to clean this out with heavy machinery before we can take out the more finely honed tools to polish the emerging Kambojas article. The "Kambojas and Cambodia" article is essentially about the attestation of the name Kambuj in Indochina. I have made this the Name of Cambodia article now. It should discuss the Indianized kingdoms in the region, and epigraphic attestation of the Indic name.