That all sounds excellent, Miss B!

Sculptris is still available. Pixologic bought it a while back and has been offering it as a freebie. It's off their main site now, but it's still there.

I started playing with Meshmolder last night. The free version is a reduced build. It's buggy if you push it too hard. The alpha sculpt tool doesn't work (though controls are there). The slice tool and other features are not there. To get the latest build requires a $5 donation and they say they'll email within 24 hours. Not sure about all that. It's not the amount. It's the weirdness of the arrangement. Maybe if I decide to write an article about it...