looking at a 2009 yaris- need pricing help

[toyotayaris19149]

found a nice 09 4dr yaris sedan base model? 99,100 miles -auto, pw, cd ,cruise, fog lights, hubcaps-no spoiler or sunroof,
shows accident lr 2011 nothng major -current owner bought 2015 at 90,250 miles.
clean car- no pets no smoking -

owner asked 5800, 5400,4800, now down to 4300 - looks like owner moving and really wants car gone ---***** what would you ask bottom line ? *****

no im not going to offer 1500 but a fair price- i was thinking 3750 maybe less --what ya think ???

unless it has records i planned to change plugs, oil and coolant, possible water pump if it looks due and maybe fresh tires,battery as it will need to be 100% and good for long occasional drives