Just got a new backpack for my Mavic mini fly more. TheMM case fits perfectly in the bottom and plenty or room for all the accessory’s. Managed to pick it up for £45.
https://www.amazon.co.uk/gp/product/B014CKVZWU/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1