Working equal time tours can work as long as you only spend 90 days in UK per annum. It means spending the other 90 on holiday somewhere else which if you are single is no problem but can be very difficult with a family. As a single keen skier and diver it worked for me!
Depending on which company you work for they may be happy to fly you somewhere other than your home base if it doesn't cost them any more money so that covers the transport costs of your holiday. Enjoy!