You'd have to be careful giving the measurements. It could turn out to be a cross between Spinal Tap and Handy Andy.
The thing that is missing now is the contact with the stones, that's why people go 'gee I didn't think it was so small' because it isn't actually that small, it's what's called perspective. the tallest is about 22ft high, pretty tall. Like I say, you could have the new version of stonehenge in london, save all those tourists coming out to wessex. They only go on to Bath and get in the way.