The XLE Limited is the highest of the line. It looks like $13k is on the high side of prices, but it's a VERY tight used car market right now. The Sienna seems to hold up to rust, more or less. If you can knock some dollars ($3-4k?) off that (a dealer probably only paid $7k for that plus $1500 in prep work), it's probably a great deal. That said, literally every time I've looked on a dealer's (new or used) website for vehicles, the really nice ones are bait-and-switch cars that were sold long before you went to the page and they always assert their web person was on vacation and got behind.

 

We have a 2010 LE and have great luck with it here in Chicago, probably about the same rust situation as Milwaukee. I'd check for rust on the jack points and structural elements of the frame, if those look weak from rust I'd pass because that means the rust is pretty aggressive.

Assuming it's 2WD, there was a recall to replace the spare tire suspension mechanism because of rust problems. The tire could fall from under the car while you're driving. I can't remember what the recall actually did, I think the cable that holds the tire was changed but I'm not sure. Make sure that was done. If it's 4WD you don't have a spare.

One thing to check on that generation engine is whether the oil cooler lines have been replaced. It comes with rubber hoses that fail which leads to catastrophic loss of oil. There is a replacement part that uses metal tubing instead of rubber, it's not real expensive to have it fixed, I think I paid $150 or so, but the dealer will charge a lot more. If you search the forum you'll find dozens of people who had that line fail and damaged the engine.

 

Thank you, BIllG and Markl. Thoughts are truly appreciated. Yes, the prospective Sienna is a 2WD version, good to check on both the spare tire cable and oil cooler lines.
Sienna from dealer appears $3-4k overpriced, although van was well taken care of. We are new to the Sienna family, own a 2000 Mercury Villager currently with only 104k original miles - but finding certain parts are discontinued by aftermarket manufacturers, and OEM parts are unobtanium.