I bought a computer table with a nice keyboard and mouse tray several years ago. Basically it's a bit like how old computer tables used to be with a section for PC and another end with some drawers. I am thinking getting of another monitor on Black Friday but this table is too small. Unfortunately the way table's back panel is, I can't even attach any monitor arm to it.

So my plan is to sell this and make a larger one. I read that lot of people are getting various parts from Ikea (UK) and assembling their own as this lasts longer and is even cheaper. Could anyone please help me out with what I will need? Even better if anyone has a video of someone doing this? Thank you!