Hi,
I'm going through the process at the moment. I would recommend talking to the bank too, Sergio is probably the best contact.
Not sure about the business plan bit...FTE emailed me a copy to send out, then i spoke to BBVA and they sent me a load more info so i would definitely say to speak to them to find out EXACTLY what they want from you.
Agree with Martyn about the house with no mortgage bit, not sure how they will see that. Do start the process early though as i know they have a reputation for being a bit 'manana' about everything!!!