cool, cool. I like the idea of sleeving the bolt holes like that. I'm glad this didnt turn into a "it wont work unless you cut the lid off and do it up trophy truck style with 500 feet of tubing and triangulation and stuff" verbal battle. I say BS to that. Although this style of cage is mainly qualified to protect you in a low speed, offroad roll, you cant try to tell me that having one in a roll on the freeway wont help as well. Without anything I can just see the whole cab getting smashed like a tin can.
Ultimately my plan in to run an interior cage, likely with the sleeves shown above, and hopefully with the main hoops out of DOM with HREW bracing and supports. Also plan to run downtubes out the back of the cab and straight to the frame, which should help prevent a collapse backward (given how the a-pillar tubes are slanted back). With heavy floor plates sandwiched and tied to the frame I think I will be MORE than safe in most situations.