Does a lexus RX300 yr 2000 have a timing chain or belt? when does it need changing? Thanks

belt at 90k is when the manufacturer says to do it per standard maintenance. It's part of the 90k service actually

I just bought a nice Lexus RX 300 for $750 from an employee at a local auto dealer. He said he didn’t know of it needing any service but I paid $350 to have his shop give me a laundry list. They found $2,500 in urgent repairs but said nothing about the timing belt. I took it to my trusted small owner repair shop and they said the most urgent need is the loud clicking of the timing belt that needs replacement. I expect I was deliberately snowed by my dealership as I could have spent $2,500 on brakes and tires only to have my engine melt down if the timing belt blew. I don’t think the guy who sold it to me knew but I do think his dealer shop should have figured it out after a 90 minute “used car analysis.” Anyone have thoughts? I don’t like to think I get snowed because I’m a woman. I hope they would rip off men too lol. Thoughts?

Its a non interference engine.. your lucky.. nothing will happen except putting a new one on. No damage..