In a similar situation to you Andy but a few weeks farther down the line. Just awaiting my kit to be delivered this week and have just finished taking apart the bmw. Not sure on a few of the things you have asked about but Chris was just telling me he is finishing off a build guide this week and sending it my way. Don't worry too much about lights and things. It'll all become clearer when the kits in front of you too. We'll, that's what I'm hoping!