The cab I am using has a removable roof/rear section which I intend to run as a convertible. My issue is that if I fit a support frame it has to be at least 700mm hight to allow for fitting the seatbelt point being high enough, but then I cant put the diagonal brace back against the rear of the cab within the allowable tolerances as the cab rear is only 400 high.
I dont want to run the support bars out the back of the cab through the rag top because then I cant fit the hard top and it would look like shit with them going into the tray area.
I note the stays must not be on an angle of more than 70 degrees from the main hoop but it doesnt actually say in which direction it must go. Could I take the braces from one side to the other (X braced)? It does say in the manual the diag brace can go either forward or rearward so that might screw my idea, but if the mounting point is behind the main hoop then technically it has gone rearward...

The bar will run up against the rear of the cab (actually touching) at the top of the cab base at 350-400mm so could I use a bracket that attaches directly to this strong area or perhaps run a brace or braces directly off the back of the bar onto a plate against the cab rear and put a doubler plate outside the cab?
As an aside the old mounting system was through the b pillar but is in front of and above the allowable area for the mounting point. I could use the factory point but that only works if I stay with the hard top (whats the point in that?) and I'm guessing I would have to reinforce it anyway because the steel is pretty thin there. Same issue if I move the mount to between the windows behind the seat where the metal is pretty thin too. My preference is to use a solid bar which will give me a little more confidence than the old tin toyota used. In the event of an incident I dont want to be sitting in a hospital thinking I could've done better