Contract build time has started but no builder in sight or on site

Well we are officially on Wisdom time now. Under the contract they should have started on 20/12/13 but then there was was the 5 week Christmas shutdown period which brings us to today. So the longer their appointed demolition company takes to demolish our old house the less time Wisdom have to build our new one. 30 weeks from today we are supposed to have a house, weather dependent, so we are counting down now.
Once again we have received empty promises from the demolition company about when they will be back to complete the demolition. They were supposed to return either yesterday or today with their heavy machinery but surprise surprise they were a no show again. They will not answer our texts or phone calls.
They have appeared on site for the odd day here and there since before Christmas. Must be the longest demolition ever. My neighbours are over looking at an overgrown dilapidated property, not to mention that Wisdom are now considered a joke by so many people we know, especially those who have done knock down rebuilds with other builders. They certainly won't be getting any business from any of our friends or acquaintances.
On top of it all we have been evicted from our rental property after only 6 months because the owner wants to do a knockdown rebuild. Ironic. We asked for a 12 month lease and were told by the real estate agent the owner only wanted a 6 month lease so he could verify his tenants were reliable, and he would renew if we were. So we signed the lease. What a load of BS that was. So we need to move for the second time in 6 months and are desperately trying to find another rental property within our price range and area. So far we have not had much luck. More wine please!

This is how our old house looks at the moment.