Alphacool Eiswolf 2 AIO Question

Hi, newbie to watercooling here and looking to get into it since air cooling ends up making my living space unbearably hot, even in the winter. Focusing on the GPU first, since that puts out the most heat when gaming. Looking at an AIO.

I have an Asus TUF 3080 Ti 12gb model, according to Alphacool's website I should buy the Alphacool Eiswolf 2 AIO - 360mm RTX 3080/3090 TUF with Backplate. However, this model doesn't appear to be on sale on their site and I cannot find it in stock on other websites either. They do have just the[ waterblock and backplate](https://shop.alphacool.com/en/shop/gpu-water-cooling/nvidia/wak-alphacool-eisblock-aurora-acryl-gpx-n-rtx-3090/3080-tuf-with-backplate-eol) on sale, however.

Can I buy another Eiswolf 2 360mm AIO set like [this one](https://shop.alphacool.com/en/shop/cpu-gpu-aios/gpu-aio/koi-alphacool-eiswolf-2-aio-360mm-rtx-3080/3090-rog-strix-with-backplate-pht-eol) and just connect the pump and radiator to the above backplate, assuming the pump connection to the block is universal?

I emailed their customer support and asked the same question but they never replied. Am I barking up the wrong tree here? Thanks for any help!