At 290 lbs you will be underweight for the Hobie 20. Most of the 20' cats are better suited for teams at 350 lbs or better. There are several options in used boats that we meet what you need. The Nacra 5.8 or 5.5 would be a good high performance boat for you guys. The Hobie 18 would be great too. I could go on....F18 is growing like fire in the U.S. and your weight is also reasonable for this class. F18 has two different sailplans - a smaller jib and spinnaker for teams at around 289 lbs and a larger jib and spinnaker for teams starting at 330 lbs. The boats are pretty quick but you do have to learn to work a spinnaker.