I have your 9 gallon and I only regret that I didn't go bigger. Ideally I'd go 15 gallons with the basket for BIAB. The handles do pinch the hands a bit, but solid product overall.
PS: The windscreen sounds great, I have the sq14 that I chose since it was square and would be easier to screen.
Ataraxia: Freedom from pain in the body, and trouble in the mind
Bottled: House Pale split US-05/WLP 400, Cottage House Saison
Fermenting: American Hefeweizen, Small beer with 3rd runnings of Hefeweizen
On Deck: Wit, Skeeter Pee