VoodooUomo

This is driving me a bit crazy as I can't find a definitive answer so I'm hoping you folks can help.
I'm looking for an extra set of wheels for my 991.1 GTS (2015) that hash centerlocks and PCCBs. I had my SA send me Porsche's PDF with approved wheels and tires for the car and they list these sizes as the only approved ones:
Front: 8.5 x 20 ET51
Rear: 11 x 20 ET52
--
Front: 9 x 20 ET51
Rear: 11.5 x 20 ET48

Most center-locks I see for sale are take offs from Turbo/Turbo S/GT3, and they're different sizes and offsets, but they claim it will fit a GTS. For example, this one is:
9 x 20 ET51
12 x 20 ET48
This one is yet another size for the rears:
9 x 20 ET 51
11.5 x 20 ET56

Will this fit? 991.2 GTS wheels are yet a different size, will those fit?
Any definitive answer on which take offs will or won't fit a 991.1 GTS?

Thanks so much for your help.

Atlas 1932

I don’t know if this helps but I just got a 2018 911 Targa 4 GTS delivered and they found me a set of center lock rims with winter tires off of a 911 turbo. They were fitted at the local Porsche dealer.

Here it is when they test fit the wheels