Nice to have some new people on the site...so welcome!

Are you sure you'd really want a 250? Just that they perform in a bit of a car like way in terms of acceleration, so I find that if you have something with over 400cc you can keep clear of the cars much better, safer overtaking and getting away from the lights really quickly. Although there are some fairly nice 250s for fairly reasonable prices such as the Haojue Suzuki GW250. Also don't forget the Thai made Kawasaki Ninja 250 and its unfaired brother the Z250, import tariffs on those aren't too excessive.