Reluctantly decided to move ahead with the rear window installation. The order available in time from Vans - #6 stainless steel screws, washers, and nuts. A semi-permanent solution without the difficulty of pull rivets. Personally cannot believe it's 'water tight' but may reconsider adding a sealant in the future.
The difficulty is access to the baggage compartment and tail cone to finish the inspection and close up the bulkhead.
