I've completed 3 home conversions now, and best advice I can give is join the SBMCC. For £15 you have access to all the club members expertise and a big list of suppliers who offer discounts to members. Also get catalogues from Screwfix, Isaac Lord etc. both useful for hinges, fixings and so on. often much cheaper than the conversion specialists. Just remembered...... Rainbow Conversions, Charles and Sons and Magnum Motorhomes. I also bought stuff from my local caravan dealer. Good luck. it's a most satisfying achievement to build your very own totally unique 'van. And of course you save a bundle of dosh!Mike