Been on my list too, but it looks like it’s been given a brand name and replaced with this: RUSTU R43S
I’ve been looking at this and couldn’t find anything about it on here then I stumbled on this awesome review of the Aurabuy unbranded version (thanks Spasmod!)
It’s actually even cheaper for US buyers at DX on their new “US DIRECT” site only $45.97 with fast (5-7 day!) free delivery in the US: RUSTU R43S US DIRECT Now this is getting hard to resist!
While reading this review & thread I was thinking exactly the same thing, still wishing, but here’s something pretty close: RUSTU RX-40 Per the specs it’s a slightly larger head, but different reflectors, (smaller, more shallow?) Unfortunately it doesn’t have the side mode switch. (There’s a review on it here and on here and it didn’t score so well.)
I’ve also been looking at the Shadow SL3 although it’s only 3xT6, but has the side switch only (controls both on/off and modes). The nice thing about the R43S having the tail switch and side mode switch combination is for “tactical” use, it’s easy to find a switch to quickly get it lit in high mode in a situation of urgency.