I did a google search on the 2 desk and it looks like the 2nd photo is a DIY project - are you handy? The 1st photo is from West Elm where you can add to pieces to the main body part. https://www.westelm.com/products/rustic-modular-48-desk-h967/
West Elm ships internationally but maybe you want to see if you can find something more local, if you don't want a DIY project? Because of the size of the overall desk I think it is going to become a focal point so I am now thinking we should have that piece figured out first and ready to purchase before we look at styles for the other furniture and rug. But still keep on the path we have discussed previously with measurements.
Q