Head bashing against a (fire) wall

Progress is slow because I'm still waiting for the gearbox to arrive. Until then,  I can't get the engine in and can't start on the myriad of jobs that follow that.

Fitted the drivers side internal side panel (invert picture in last post) and started on the firewall. I just drilled the few holes needed and,  like others,  I've fitted rivnuts rather than rivets so that I can easily remove the scuttle in future,  if necessary:

Lots of purchases recently; seats,  interior carpet set, remote brake fluid reservoir.