I’ve managed to pull the front of the arch forward enough now (plus a bit of hammering!) to get it into a position I’m happy with. I’ve tacked it to the A pillar and added a few more tacks to the B pillar. That should do the job!

And a trial fit of the donor tub, everything seems to be lining up nicely. I’ve got an early finish tomorrow so should be able to get all of this welded in and finally have some strength back in this area.