Need HELP ASAP! Should I buy?! $4,000 2007 Yaris 119k

[xhifer]

I need help on deciding if it's WORTH it to buy a 2007 Yaris 5 Speed with no power window/power doors. It has 119k Miles and needs tires and clutch has never been changed. The owner is asking $4,000 USD. He bought the car with 80k miles in late 2009, so I assume most miles were highway miles. The car needs some TLC with fluid changes like, brake, master cylinder, etc. There is some gunk under the oil cap but no milky substances. It runs good, but I feel a little "judder" or under power when shifting to 2nd and putting the power down. Is it normal with these low power cars?

I feel like $4,000 is a decent deal, but I don't know much about yaris' as I just came upon this deal.

Any advice would be great!