The author remixed this model.
This mount will fit the TZ2.0 hotend from Aliexpress https://www.aliexpress.com/item/1005006049615976.html?spm=a2g0o.productlist.main.3.7e4d31b60zq9Kv&algo_pvid=8312ecf8-6945-4d05-9752-45e6b4d8af43
Mounting of the hotend will use the m2.5x8 hardware included in the kit.