so in this small corner i start by adding a small plate butt welded to make up the floor as original , all else will be worked back from this

this was my moment of sillines as i also re-gas welded it through the rear light aperature for fun, see below, not the neatest but

then the next part is the vertical bit, this finishes here on the original so i have choosen to remake it the same

and now from the arch side ready for spotting through, the original seam continues along from this

ikewise this is how vw do it so may as well follow, its very important to make it correctly and align it with the other component parts.all will become clear,, maybe

here it is resting in place,

this is now tacked/spotted as original , its still raw and i will run a disc over it

and from the inside

now i have held the lower 1/4 in place and you can see how it fits against the new part, it must NOT sit on top of it as is often the case as it will result in a large unsightly seam gap, also in the future if someone has to replace it, then it will be easier to do and be a better job

rear arch holding itself in place, its had a bit of work and the upper left corner needs defining more but its nearly there

rear is near enough ready now

seam gap on rest or arch is passable now but will tighten up a bit prior to welding

this is the inside of the front of the arch showing the new metal tucked behind the remnant that has been blasted, simple respotting and its done

mm