Decided I'd try the rear valance section from the UK supplier.
indigo123music (UK) - Facebook Page (Auto Panel Solutions) Details in this thread.
https://www.ebay.com.au/itm/293257126777?ul_noapp=true
Only problem is that the cost is 214 GBP before shipping, once shipping is factored in it will cost around $500 AUD by the time it gets here. I would have bought 2 but never really worth the effort bulk buying and it seems the extras I bring in end up benefiting someone else not me. :). Otherwise I'd have bothered to organise a group buy. Maybe someone else can if there is enough demand? But I also don't know just "how good" this panel will be yet till I have it on hand. So you can call me the guinea pig for this 1, and hopefully the community will benefit from my experience here?
I think this section is a lot better made than the Canadian supplier piece which I struggled with, due to missing compound curves and the thickness of the material it was made from.
Reason I bought this 1 is that it's closer to OEM than the Canadian section (muffler cut out in particular) and the piece I fabricated which I was gonna struggle to get the rear bumper reliefs right in. Since this section is nearly impossible to find now and nobody is doing a full reproduction I decided if I can make 2 good sections out of the scrap I started with it would be beneficial to have 1 spare and it's all a good learning experience (even if it's an expensive 1), but I want this car to look "right" when done. Otherwise once it's in paint any "faults" will really irk me..
Also still cheaper than the $4,500 NOS 1 I tried to buy on eBay a year or so ago...! So from that perspective I'm still ahead, even though I'm behind, if that makes any sense?