You need to go to NZ, buy the Kennet Bros book & start putting those
stories on your site. The Queen Charolette Track is between great &
incredible, amongst dozens of others.

I am not a kiwi or anything like that but just have had a few good
bike hols there.

Then there is the Great Tasmanian Trail, good for a long ride off road
not so good if you want single track day after day but a good off road
trip. We rode onto the ferry & flew home from Hobart.

Oh, I forgot some of the rides from Falls Ck & Mt Hotham to the
valleys below. Falls to Mt Beauty is around the 4,000' in descending.
You seem to like climbing so you might want to do it in reverse.