f body resto ?'s

[restified original]

hi, new to board

resto'ing a 68 firebird conv...need to brace door openings prior to replacing pans/inner rockers...looking for any available made-to-measure brace, but have been unable to locate...i can fab my own bracing, but need a spec or simple measurement for the door opening, just a jamb-to-jamb distance measured from straight car(s) should be good...i have reason to believe that my car may already be off, as the doors weren't opening/closing well...maybe one measurement at top and another lower down, to the forwardmost part of the rear jamb...any help would be appreciated; i've kind of been bouncing around...

another q.- is there any known solution for dumping the heavy 'shaker' vibration dampeners? obviously i'm doing subframe connectors...any ideas?