Nice, I've considered doing this... though then that would effectively double the amount I paid for the system. Are the improved displays from a later/different ThinkPad model, or are they something being newly-manufactured? Part of the reason I chose such an old computer is to purchase already-existing hardware second-hand, rather than put my money towards newly-manufactured stuff.

Very cool. I just picked up a more portable, refurbished T450s to use for when travel or general portability matters, as well as being less to worry about than my primary device.

Is there a good site for recommended upgrades by model? I'm pretty pleased with this as is for Linux use already. (8 GB RAM, 250 GB SSD).

Classic Thinkpad repairability/hackability.