Thinkpad X200, X220, X230 or X240, choose the one on your budget. they are tough and easy to fix and maintain, there are replacement parts for almost everything and dirt cheap. Everything is replaceable just taking a couple of screws. They are not the lightests but to get an old i5/i7 for around 150USD, to me is unbeatable. You can find them refurbished at ebay and some of them can even use FOSS BIOS.
Thinkpad X200, X220, X230 or X240, choose the one on your budget. they are tough and easy to fix and maintain, there are replacement parts for almost everything and dirt cheap. Everything is replaceable just taking a couple of screws. They are not the lightests but to get an old i5/i7 for around 150USD, to me is unbeatable. You can find them refurbished at ebay and some of them can even use FOSS BIOS.
These thinkpads can be hackibtoshed too, so check for that