You have made an excellent start for your learning journey with the HSI (BSI). And you picked the right configuration of materials and fittings to keep it representative of the originals. What you have is faithful reproduction of the best BSI type that was issued to the British Gurkhas. Originals in this style, with that overall blade profile, were produced from late 1960 to early 1980's. After that the blades issued drop dramatically in quality. The current issue is so bad as to be almost a decorative/symbolic piece. With thick, heavy blades that are not good to say the least. In fact I find it quite shameful that we outfit our Gurkha troops with such a poor quality kukri. As for the modern Gurkha, they will almost always swap out their issued BSI with somthing more useful. Often choosing a sirupate style.
That being said, its worth noting that in history it was not uncommon for the Gurkhas to use faster, lighter Kukri than the issued, military patterns. These types, often made in smaller batches, are often referred to as "battalion" kukri.