Cheers Ronnie - it is definitely a big stage forward when you get the panels on. I must be one of the few builder who has fitted their bodywork and started the wiring before even having had the car on wheels
At the moment I have mounted my bulkhead fittings straight through the alu with no steel brackets as I assumed this would be ok - we fix the pipe with plastic clips so I couldn't see why mounting through the alu would not be acceptable - but who knows when it comes to the IVA man!