ideas/help on startig a business.?

[Nick]

firstly hi all,
i would like to start a business in auto repair. and because a van is much cheper then a garage i would like to start as a mobile mechanic and would like to know how to start or go about doing it.
im a hgv trained mechanic have all the necessary tools so im thinking starting could be relatively low cost just need a van. and well the info on how to start. any help welcome
thank you all
hi an thank you for your answers. but few more questions
how old do you have to be for van insurance im 20 nearly 21?
can i start a business if i have no address my plane was to kinda kit a bit of the van out in to a camper so id be living in the van?
and finally how does the vat/tax man stuff work? if you could point me to some good website/forum i would really appreciate.
thank you all