Looks reasonably clean from the pics for a currently on route machine.
It has something wrong > since it has a credit dot. Maybe something easy but never know.
3200 to 3600 is a STEAL for a TZ that is not completely beat IMHO.
It is tough to give a good estimate without better pics and more details but if you can get if for less than 4000 you are doing fine. Just my opinion of course.