Nice job. I like the attachment idea. Looking forward to watching the build. jd
+1 Are the tubes attached to the camper going to be bolted to the jack supports? I'd want those corners in the camper beefed up lots. The jacks do a fine job of holding the camper up, but as those who have hit something (or been hit) with/on the jack while driving can attest, they don't handle being torqued in any other direction. Frame manglement and carnage results.
Unless they are "guides" only and there is another secure mounting method in your plans?