Motorbike as a BOV, help please.

[Steve]

My biggest problem is getting my kids and their families from their homes in the south east to my place in the west, they have their own vehicles but will leave the trip too late and likely come across blocked roads at some point. To that end I have a large panel van, big enough to sleep 8 people in an emergency, several 200 litre drums of diesel, equipment such as winches, flat metal sheets and washing up liquid to move vehicles, and a 125cc four stroke trail bike as a last resort vehicle. I am going to build a small, narrow trailer for use behind the bike, capable of taking a person or a load. It will be slow, but it will keep me mobile when all else is blocked and does over 150mpg.