Or for a very ridig setup something like this (as the saddle is no longer the support for the handle - a big drawback for the KH t-bar which I own but only used for a short time as I found it to flexy)
You can use another stem to make it shorter and or higher/lower if needed. All details should be in the same thread in earlier post by me. Also feel free to PM me if you need something explained. I’ve used variations of this setup for the last 1,5 years on different unicycles and it’s awesome and reasonably priced.