Andover crew

Hi guys, Im a rising freshman to join Phillips Academy Andover in the fall. I am interested in joining crew and want to make the team in the spring(from their website, they have about 6-8 8+s). What is a good 2k erg time I should aim for by the fall? I'll continue training in the fall w/instructional crew and in the winter with erging. I have rowing experience in the past on the water and erging, both sweep and sculls. Thanks!