New hardware port available in Libreboot: Dell Latitude E6400.
News announcement: https://libreboot.org/news/e6400.html
Boart port was done by Nicholas Chin (nic3-14159).
It has completely blob-free boot, same hardware generation (GM45) as old ThinkPads e.g. X200, T400.
Easily available still, on merchant sites, relatively cheap (like $100 or less) *and*:
*No disassembly required*
*You can easily install Libreboot on it yourself, without help.*
That's right. Five minute installation. No skill required.