Anne Pro? Filco Convertible or Filco Minila Air?
but both are kinda hard to source though.

i dont like elysium bcoz of the non-standard keycaps. as for usage, im not sure. nvr had any experience using it for a long time except some cuba cuba at shops.

maybe u can try buying used anne pro just to try around?

i have a minila. it does look uncomfortable, but once u get use to it. it is good enough. for me at least.
it is my only kibod that i can swap control/caps lock. and yes, having control key on caps is much more convenience.
as for the battery, u can always use a rechargeable batt. but i can say the battery life is impressive. for me who rarely use it. i nvr changed the battery given from the guy i bought it from.