I would say the Pro1x from IGG is a very good N900 replacement with keyboard, multiple OSes and soon multiboot, mainline progressing significantly (hence hope for Maemo Leste) and chroot/LXC like EasyDebian. However shipping time is important for you now that your main phone died, so that won't really work. Christmas perks are all sold, and I am afraid it won't be easy to find one on the forum since there were only 10. If you like it, it could be worse buying a cheap phone in the mean time until the Pro1x is shipped next year.

I can see myself still using a Pro1 in years unless they make a Pro2, which is something that very much reminds me of my N900 too.

You can find videos from Netman, Mosen and I (Netman and Kib nicknames on YT). They're not professional videos, but we all have been using ours for one year and different uses (Android. Sailfish, Sailfish + Debian). Also we're TMO people, so for you it may give a better idea of what to expect than reviews made by Android pros who don't care much about keyboards or alternate OSes, and haven't use the phone for long.