Still waiting for my DNA40 boards but I decided to rip apart a perfectly working Hana mini clone. I left the up and down buttons and just snipped the wires so I just need to solder to the buttons. I thought of this after messing up the fire button.
It's not pretty but it works.
I had to shave a bit off the corners at the bottom for a better fit.
Surprisingly, there's a decent amount of room to work with. My initial fitment looked like there wouldn't be enough room for the wires but there is. I might just solder the wires in.
And I couldn't just leave that crappy screw adjustable 510 so I
threw on a VT 510. Same as my others, it's off by a hair but still pretty good.
Hopefully, I'll have my DNA40 boards by the end of the month.