You got a good one...
The entire Heritage/Legend series (Heritage 1HD, Heritage II, Heritage II Legend, and Legend II) are among my favorite Kirbys. The latter three are actually all the same model, 2HD. I especially like the Heritage 1HD with its bright orange bag, and so does my cat, as evidenced by my avatar photo. Since you have the hose, tools for just about any model Kirby will be compatible.
That said, I have retrofitted both my 1HD's with Heritage II mini emtors and fill tubes so that all of my Kirbys are in the same bag ecosystem with the rest of my Kirbys. One of them came to me with a dump bag and with the other, I couldn't reinstall the original emtor and fill tube after I laundered the bag.
Definitely hold onto that one and enjoy it!