I have 2 nine inch banneton that I use: https://smile.amazon.com/dp/B07F6TWB8W/ref=cm_sw_r_apan_i_FKA4Y1KNW14T1T1K7PNA?psc=1
I found the key to rise and a good ear is a Dutch oven: https://smile.amazon.com/dp/B000LEXR0K/ref=cm_sw_r_apan_i_TVSP4EH5AGKPVPB27KNP?_encoding=UTF8&psc=1
For bread, I’d get the 5qt version cousin to this: https://www.amazon.com/Lodge-L8DD3-Cast-Iron-Dutch/dp/B000LEXR0K
3.2 qt seems a little small for a typical boule.
If you want to spend all $150, you have a lot of options to buy “fancier” brand names, but functionally, you gain nothing really.
I got this one for my RV. I chose it because the lid can be a skillet or cake pan & it doesn't have a long handle:
https://www.amazon.com/gp/product/B000LEXR0K/
If we're going that route, I got the one with no handle on top. I've only ever used them "upside down". (Actually, bought a pair.) I suppose some day I should use it right-side-up, for something.
They'll easily fit 800g oval loafs. Haven't tried enough circulars to test that way.
https://smile.amazon.com/gp/product/B000LEXR0K/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
I have two of the Lodge Double Dutch Ovens that I really like. Like the combo cooker they have a shallow top that you use as the bottom when doing bread and it doesn't have long handles so I can easily get two into the oven at once and still be able to slide them around each other as needed.
For OTT chili, I use the lodge double Dutch oven.
https://smile.amazon.com/Lodge-L8DD3-Cast-Iron-Dutch/dp/B000LEXR0K?th=1
Fits nicely on the BGE. The lid doubles as a fry pan if needed (works great for making brownies).
The setup is not as heavy as what you linked.
If I set it up on the plate setter, I use three 1/2 inch copper tees to rest the pot on.
https://www.homedepot.com/p/Everbilt-1-2-in-Copper-Pressure-All-Cup-Tee-Fitting-C611HD12/100343348
Here’s a pic of it in action:
https://reddit.com/r/biggreenegg/comments/srot9h/over_the_top_chuck_roast_chili_for_super_bowl/
I use the 5 quart
I used a cheap enameled dutch oven from Target for years, and never had any problem with it. I heated it empty all the time, and I just wrapped the plastic handle in foil. However, if you're using it exclusively for baking I'd recommend getting the Lodge Combo Cooker instead. I find it much more convenient to place the loaves on the shallow "lid" part and use the deep "pot" part as the lid. Fewer burned hands and lopsided loaves.
Behold the lodge combo cooker! Skillet is the perfect size for 4 sunny side up eggs, or a 2-3 egg omelette (french style). The dutch oven has you covered for braises, soups, and stews. The rounded edge of the skillet is easier for making pan sauces and flipping things close to the edge than the slope sided skillets.
I see some naysayers about the modern produced lodge skillets, they are just as "nonstick" as the smooth bottomed ancestors. I have a set of modern skillets, and a set of older skillets. I reach for the piece I linked above for 3 out of 4 meals. In case you don't believe me, have a gander at this article.
I keep recommending this one:
https://www.amazon.com/dp/B000LEXR0K
I have a different 5 qt Lodge that is a good size for the loaf you're looking to bake. I like this one more because you can bake the loaf in the lid.
https://smile.amazon.com/Lodge-L8DD3-Cast-Iron-Dutch/dp/B000LEXR0K?th=1
Thanks for the comment. I've been inspired by your chuck OTT recipes... that's actually part of the reason I was keen to get such a wide pot for the chili as well. The lodge double Dutch Oven certainly looks like a more practical approach.
Here's the excellent silver-lining to the dutch oven saga!
You know that last day of packing and moving where one is just like, "fuck it just throw shit in a moving blanket and I'll deal with this shit in the next city"? That's precisely where I was with the dutch oven I had that was new-ish and that I needed to scrub out and re-season, but f all of that noise on the Night Before Big Move, so I just threw it in a moving blanket with a bunch of my other baking stuff like a proper gross person.
So FUCK THOSE GUYS because when my renters' insurance money came in, I then also got to get the BETTER dutch oven that I wanted in the first place. It's two in one, $50, it's super baller.
I would have been *so pissed* if I'd bothered to re-season before moving, and even better I got the cooler pan, hooray.