Brent
The reason for going this way was so I can use 20mm bolts as short as possible and flush at the top , probably no more than a nut space apart for the pates as I dont need access underneath to attach the scope and hate seeing long bolts waving in the breeze. This will prob mean 15-20mm top plates , waiting for the quote on the pier construction now and a talk to the metal fabricator .
Mark
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