Gawd, in Vic if your headlight is pointing half degree out, your done for !
Big decision was to just weld it in, it's got a M8 on the right side and a M6 on the other side for mounting the jack and handle etc .

Plug welded and sealed

Another small job off the list.
Getting late in the day I was thinking about the battery tray placement, first is to measure a battery. The battery I'll use is a optima D51 yellow top dry cell, they last for ever and I've had one since the blue mk1 van was built 11 yrs ago, that battery is in the ute now and still good as gold. With the measurements and added about 5mm overall, I found a plank of ally sheet of about 2.0mm, then designed a plan to create it. My first design was a cross shape in which the 4 sides are folded up but I binned that plan as it uses a big piece of ally.
Next design was to do the wider sides and base in 1 part but adding mounts at the base and wings at the top for the t bolt down brace . This is it so far after folding.

Checking the fit in the old wheel pocket, I did remove the spare wheel strap bracket as that's not used now

The ends still need making and once done I'm going to do a lot of Tig practice on the ally offcuts until I'm happy.