Have you space to cut a hole in the front verandah for it lol?
A serious suggestion though, and one that may hit the local papers. As it weighs a mere 150kg, drop by a local mobile crane company, explain your dilemma and ask how much to drop by your home one quiet day for a 10 minute job to lift it into your back yard ... it may be not as much as you think ... offer them photgraphic rights for their web site 8))
Compared to taking multiple doors off to get it through the house it may be cheaper.
