https://www.ebay.co.uk/p/Stanley-Pro...d=233107542076
Many similar available many sizes, just add padding
You can spend hundreds on a dedicated scope cover, but when you attend Astro events most people use £5 tarpaulin or £15 toilet tents, cases are the same, I have yet to see anyone at a star party/event who parts with hundreds on a case when as good is available.
This transports my Edge HD Celestron, padded sides and pillow on top and under