250 is plenty for a flowerhorn. For 250 you could even get a descent pair. I wish I had something to offer you but nothing that probably suits what you want.
Ask on flowerhorncraze, flowerhornusa, or flowerhornrus forums there might be some hobbyist that are selling closer to you. Good luck in finding a good flowerhorn you like. I can ask some of the hobbyist around my area if they got any descent quality ones they are selling.