Thanks for your questions:
The encoder is indeed placed in a way that allows my finger to not move away from the home row and use my thumbs to navigate the knob.
I got the custom carrying sleeve from Mechfashion from a small private group buy we did. But not sure if the owner still offers customized keyboard sleeves. The domain and business was moved to deskpads. The sleeve provides enough cushion and protection to give me some peace of mind when throwing it in my bag.