Haven't read the entire thread, but chain link comes in several gauges (thickness of the metal, and therefore directly related to its strength) as well as with several different sizes of openings. The smaller the opening, the stronger the fencing. Economy chain link has light weight gauge and large openings. Chain link specifically made for dog kennels is more likely to be heavier gauge, but definitely verify the gauge against what is available from a local fence builder--not from the warehouse home stores such as Home Depot and Lowes, who have value priced products, but usually a far less varied selection. There is even chain link that is labeled for pool fencing: very small openings, very heavy gauge.