That is very sweet deal!!! They are called 21's, but they're 22'8" over-all and look much more like a 23'er on the water.
That boat is not an HO, it's a Mag, but you'll still see low 70's, no problem. It's got a lot of room in it too, w/ facing lounge seats and enough head room for a 6'er. Plus the v-birth bed. If not for the kids, we'd have gotten the closed bow.
RTJas