If your door is prepped for a 32" I would conclude you do not have a WS - windstorm - rated inactive door and would suggest you simply replace the 556WS with the Rockwood 555-626 Lever Extension Flush Bolt - Satin Chrome Plated Brass as seen here:
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and then a longer rod such as the IVES FBPART.1023 34-1/2" Net Length Rod for 36" FB30, FB50 Flushbolts as seen here:
and then just cut it to length.