i did this. it's not great, it still doesn't go into recovery, and it also doesn't boot normally. HOWEVER: i am thrilled to report that at least SOMETHING changed.
i still have the "tampered" banner at the top, which is, i assume, because it STILL is a wrong kernel. but when i try to go into fastboot, it says "entering recovery" for a second, and then goes back into the bootloader. before that, it would take ages, then show a red triangle.
does anybody have other, "stock" recovery and/or boot images?
if i buy a second one (exactly the same, chinese version), how difficult is it to extract those from it? not that i am looking forward to spending another 800USD .... just weighing my options here.
and i found m8t recovery at http://bbs.anzhi.com/thread-8936202-1-1.html