I swapped out the tuners on my 322ce when two of the tuners started slipping. Tsk, tsk, Taylor. This is a 2016 model and I hope Taylor has found a different supplier.
Installation was literally drop-in and I've been very happy with them. They creak very occasionally when tuning as the post is metal on wood, but apart from that they stay in tune, don't slip and the 18:1 ratio is perfect for me.
You can buy them off Schaller's web-site to get exactly the finish and tuner button you want. The model name is GrandTune, but you have to be careful not to get the paddlehead version as they have the same name. I got mine off eBay from a French vendor "Fretdreamer" and was very happy with the transaction. Their inventory varies, but at the moment they have a nice black finished one with ivoriod buttons -
https://www.ebay.com/itm/125091989642?hash=item1d2010488a:g:MlUAAOSwsk9hgPTfI lucked into one that had a similar antiqued finish, before-after