Hardest part would probably be to make reliable contact to the shell. Othewise it is just plastic work. You’ll probably need epoxy. Brass pin should be soldered.
Gotta be careful with the current though. This batch of 2300k LEDs has 0.1v less forward voltage than the other two tints and also (supposedly?) 45 deg angle rather than 60 degs.
News: 4000k variant is in the pipeline. This is from a different source than what’s already put on sale. The tint is unknown (and possibly imprecise) and these costs me more than the previous source. I will do some basic tint testing once they arrive. As always, I will give away someone a sample for CRI test.
Do you have many of that 2300k LEDs? I have one light with 5mm LED on the way. I’d rather not order before I have the light in my hands and see if it’s mod-worthy….But if you have the last pieces I might just bite the bullet.