All good Fernando, enjoy your build. My book that discusses binnacles says the typical cabinet was 3'-6" wide, 3'-6" high and 1'-3" deep. I converted this to metric and scaled, then fashion my cabinet out of scrap, with central sliding doors facing the tiller, and lamp doors on each end. Final is approx 23x23x11mm (ended up being too deep according to plans, but still looks ok). Try to use the best fine grain wood you have to skin it, as the cabinet would have been high quality as it housed an expensive (and critical!) instrument. Mine is a bit crude looking.
I had some trouble with the rigging plans for this kit...especially standing rigging, and routing of the braces. So made numerous changes per my understanding, and the books I had available. I also added many rigging details that are missing - left out by the manufacturer to keep it simple, because the model is large enough to take them and it's a good opportunity to push your skills (such as lower yard slings, truss pendants, upper yard parrells, bowsprit rigging complexity, stay-mouses etc). All part of the fun!
Reach out when you reach those phases and I can share details of what I did. Certainly still an amateur, but am developing an eye for nonsensical rope sizing and routing! Cheers, Matt