I have a 3-Person Copper Spur (a grey one!) but it cost a small fortune.
Were I in the OP’s situation I would call REI and ask them to set up a Half Dome 2 Plus and at least check it out in the store.
Still not cheap at $200 (keep in mind you get a dividend and they have sales) but even if it turns out not to be “the one” it could well help the OP define what really matter to him. Nothing beats checking a tent out in person.