I'm planning on building a media wall spanning the entire width of a wall in the kitchen. This will involve building a stud wall which will be fixed either side to a 'dot and dab' wall, concrete screws at the bottom and probably into the ceiling joists at the top.

I've already built something similar to block off the garage door for my gym and went straight in to the breeze block with some hammer fixings.

My question is, what do you think is the best way to attach the stud wall to the dot and dab wall either side?

Current thoughts are to use some of the Corefix fixings I have but I'm not sure how they will perform given the thickness of the studs. I've also got a bunch of Rigifix fixings that I could use with some extra long bolts. These two options seem a bit nuclear and was wondering if anyone had a simpler solution?