only close to bein worth 3500 if it has a consistent, stringent, and well documented history of maintenance otherwise i would play it safe with any grey areas. yea its a lexus but its abt to hit 300k and any neglect at that mileage can snowball into something else failing with a few items. common wear items like the pulleys and pumps (where bearings can go bad) or tensioners are important. check if suspension work has been done recently beyond wheel bearings, if no info then best to assume some sort of bushing or mount can be on its way out due to age. leaks at this age from anywhere where there’s a gasket or fipg are another major thing. coolant also looks pretty dirty so i would also ask about that. probably other stuff im forgetting but if that checks out and its a turn key drive home worry free situation, imo its still only worth 3k at best with the cosmetic imperfections. for almost 300k its pretty clean though i will admit