I was able to carry out a search and according to the manufacturer's specifications, it should be possible to attach it to the 5000D housing mentioned with the scope of delivery. This is what the manufacturer states:

The XENEON EDGE can be installed vertically or horizontally inside (or outside) your PC using either magnetic mounting or screws. For fixed mounting, simply loosen the four pre-installed screws on the back of the XENEON EDGE and use the same screws to screw them through the fan mounting holes into the back of the EDGE.
If you don't want to use a 360mm radiator mount but have enough space on the outside of the case, simply place the XENEON EDGE on any ferromagnetic plate and the internal magnets will hold it securely in place. The back of the XENEON EDGE is rubberised so you won't scratch the case if you need to move it around a bit to find the perfect position.

Unfortunately, we do not currently have an optional kit in our range. Unfortunately, we do not know when it will be available.