Moohampshire

I recently bought a 93 ES300 for my daughter and love it some much that I am going to dump my pickup truck and want to buy an LS400. I am looking at a 90 LS 400 that has 127K miles on it. The current owner has all the services records. The body is in excellnat shape the interior is fair. Can anyone give me a reasonable idea of what kind of miles I should be able to get out of this vehicle with following the normal maintenance schedule.