Hey lordvader.
In the manual of the MSI GFX 275 you can find a picture which shows the structure and the position of the parts.
If you compare this with the picture on the AC site for your cooler
you can see that they look very similar. I would say it is possible to install your cooler on this graphic card.
The cooling system is not build in the reference design, but the card is build in the reference design.
Kind Regards.