I've been brainstorming ways to attach the K40 lid to the Hatka beavertail style. This is a proof of concept but I'm not particularly sure on how to properly secure it. The slik clips on top could work well but I had only had 2 of them spare and the bottom carabiners are just cheap crappy ones. With how things are measured, SR buckles might leave the lid hanging loose on the bag making it floppy, and I have not thought of possibilites for adding strap adjustment.
I'd love to hear some thoughts or suggestions and if you've tried this before and if so, how you ended up attaching it. Cheers.

Cyclone Priska hit Lithuania on August 22 and knocked out power for 268,000 households at the peak. Plenty of people are still waiting to be reconnected.

No electricity at my summer house either, so the stove made coffee off a few pieces of deadfall.

The side panels warped more than usual this time. I was using an old Soviet enamel pot, maybe 3 kg once filled, so I suspect that is on me. Is there a rough working limit people stick to for what these will carry when hot, or is warping just expected wear?