Looks like you are not getting much attention, so maybe just asking a few questions or making some suggestions, may get somewhere?
Sorry never done it on that setup, so guessing and let you check the idea?
I see this on the parts drawings as having an angle across the top with holes that look like it is bolted to another angle. Is it this setup? Are they bolts with nuts or what I might expect to be screwed into tapped holes in the back angle?
Maybe a Long shaft or two on a nut driver and cordless drill?
Anywhere close to the right bolts you mention?
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Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!