Just make sure you dont end up buying a lemon.
The fuel economy is not really the best part about this car, so if youre looking at this aspect specifically it wont make you happy.
I drive a manual exi, it returns 12-13kmpl with a very light foot and with my commute involving 50% of signal free drive.
Prosmatecs return even lesser mileage.
The only issues which you can anticipate in a 100000+ car will be the suspension issues. The power pump leaks but not in every case but thats not a biggie.
I personally would prefer a newer car over a 10 year old car. But since you have budget restraints go for it. But do bear in mind, Old is old.
Good Luck!