Are you sure that door hinge alignment tool is the correct distance between the hinges ? Check it against the actual door.Can’t go any further until I get advice. This. A pillar is turning into a right pain in the bum to sort out. I thought I had the extra gap sorted out when I added another piece to the repair panel but when I attached the alignment tool it was off but 1cm so today I jacked the body up from the centre tunnel to get the tool to line up the hinges. As you can see there is now a gap of about 1cm that needs to be filled but now at the bulkhead there is also a 1cm gap. I do know whether I’m being thick or not but something don’t look right to me
Also, it looks like the tool is fitted upside down, the angles of the parts which replicate the hinges look wrong.
I would fasten the front bulkhead to the heater channel, either by welding or temporarily with 'L' brackets and TEK screws.
Do not lift the body by the door gap brace, I think this may be warping the bodyshell, instead, use a pole to lift at the top of the door opening/roofline.