peterux – Hi Peter,
I’m certainly no expert, but based on the advice of others on here, I bought some bonding paste from Glasplies.
This works with a catalyst, in a similar way to fibreglass resin.
This was a test piece I did to stick metal to fibreglass and it was rock solid.
I used the bonding paste to join my bodyshell to the inner framework.
But I also used Tiger Seal to close any small gaps that were left.
Hope that helps, Paul.
PS
Not really sure why I haven’t posted on your thread before?
As it is a very meticulous build with great attention to detail and problem solving.
Good luck.