Looking for a bus to convert to a motor home

For many years the Infinite Travellers used a Land rover v8 and Gazelle 710 caravan to travel full time.We are thinking of buying a 65 seater bus to convert to a motor home.I have been looking at bus convertions on the Internet for ever.In Australia there are Gaven and Tracy who are traveling Australia in a converted bus http://www.hobohome.com./ that is what I am looking for.

The problem is that buses are so expensive here in South Africa, a very old bus from the seventy's will cost you cloce to R100,000.So I'm still looking for the right bus.