would you buy a 2000 with a 2006 engine with 9000 miles

If there are no lights on the dash (check engine light) and the body doesn't have too many miles, because an older body means worn rubber bushings such as the engine/transmission mounts, and more probably the control arm bushings and other rubber suspension components. These can be time-intensive to replace and so tend to be a bit pricey even though the parts themselves are very cheap. End verdict: If the price is right, go for it.

well, this is old but can you update this with a pic? I highly believe this is not real because in 05 they introduced the 2GR motor which is a 3.5 and a COMPLETELY different design from the 95-04 motor which is a 1MZ. Double check it.