Smallest Electronics Bays

I am currently in the final planning phase of a dual-deploy, fiberglassed 41 inch x BT55 rocket that sims to about 3000 feet on a 6 grain CTI. Although I have had my own idea for the electronics bay (I have ordered an Easy Mini for electronics), I am rather interested in what anyone else may have done with one that small. I haven't seen any "kits" that small.

Pics with sizes or a ruler lying beside it would be helpful as would any comments.

Thanks, gary7

May not be of much help, but Raven's have 24 and 29mm bays:
https://shop.featherweightaltimeters.com/product.sc?productId=17&categoryId=2

Missileworks has a 29mm sled-
https://www.missileworks.com/store/#!/~/product/category=9045099&id=39517483

It may be possible to get something custom 3D printed...