Yes got it back already. So as I said earlier, this is where it sits.
I will use some glue, and two clamps to keep it in place so I don’t need to drill into the carry through.
I am going to make two gusset plates with 1″ hole in it to support the top, and riveted in the alu tube just in front of it. And to finish it if, the bit sticking through will be cut of so its flush with these gusset plates.
So when the fabric is finished on the fuselage, all you will see is two 1″ holes.
Oh yes I will need two bits of 1/2″ tube to brace the two vertical bits.
And then when I am flying, these two bits of tube slide in the two holes, and lift up the harness shoulder straps: