Build a custom mediamøbel / hylle

We would like to get a custom-built mediamøbel / hylle installed into a weirdly-angled corner in our living room (see pictures). The dimensions of the møbel would be ca. 150x70x30cm (WxHxD). The møbel should use the angled space in the most efficient manner and have space for electronics in a closed section with doors, some open sections for books, and space for a soundbar on top. The heater controls would still need to accessible. As part of the job, our oled tv (17 kg) should be mounted over the mediamøbel using a Vogel extendable wall mount ((info fjernet)), either screwed into a wall stender (if these are strong enough) or by fixing the Vogel mount to the custom møbel.