Apologies, just realised I’ve done quite a lot in little bursts of work between other commitments and completely failed to post anything.
So following on from the rear quarter seam repair it was time to finish the front floor, I’d done the rear while paint etc went off.
So a template was duly made

I made the ridges by clamping to a piece of bar stock and formed the relief with a hammer, stretched quite easily.

Trial fit, the better the fit now, the easier it’ll be to weld in.

The under side was then etch primed, cv primed and colour coated from a cheap rattle can of 2k paint before stitching in.

I’ve watching weld dot com and urchfab on YouTube and taken real confidence to crank the wire feed up and move faster with higher amps to get good penetration with minimal blow through. My copper plate is still seeing action fixing the odd hole.
So onto finishing the bottom of the rear quarter. Before:

A template was made and cut out in sheet steel, to mark out the curve I lightly used a centre punch to go through the template and Mark the curve.

Then using my trusty slotted bar, gradually bent up the curve.

Matched quite nicely.

Then I cut out the rot before stitching in. I wasn’t over fussed about a perfectly smooth joint as it will all be under chipguard, saying that it’s pretty smooth so that a thin skim of filler would sort it out nicely.

I seam welded and butt jointed everything where I could, the original panels were made to overlap for simplicity and speed of construction, not minimalising seams and rust traps.

Last job for today was to trial fit the rear arch again and mark out for spot welds and clean off the zinc primer on the inside to make priming easier later on. That’s going to get stitched in tomorrow, I guess my update speed will be the judge of my success tomorrow.
Time pressure is on to finish by April as I have to move house from Germany back to UK. However if I rush it now, I won’t have the facility to do it properly after the move, never before has “do it right, or do it twice” been more important.