I’ve been stock-piling electronics that either people throw away, or things I bought 2nd-hand only to find they are broken.
Looks like the right to repair law is in very slow motion. Not yet enacted be the European Commission. And once it is, member states have like 2 years to actually enact it in their law. Probably even more time before consumers begin to see results.
(edit) I think some US states were the first to enact right to repair laws. So some consumers could perhaps pretend to be from one of those states to demand things like service manuals. But parts and repair is likely more out of reach ATM.
A 2008 machine and a 1996 machine are going to be drastically different in capability. Even the 2008 machine will be reaching certain limitations depending on what you want to use it for, and what the specific machine is.
More power to you for trying to recycle and refurbish older tech, I think that is a very positive thing! But I don’t think replacement parts will magically become available if they aren’t already, only currently available parts might become more affordable or available to the public. What I’m saying is, don’t expect an LGA 1151 motherboard to come into production again.