Sponsership License for small start up buisness

[seemaruck]

Hi All,

I opened a company in 2012 but have not started trading till now. I am applying for sponsership license and is very nervous about the whole process and the money i am investing on it.. Would be great if i can get answers to my below Questions

1. Do UKBA gives you a sufficient time before coming for the audit.
2. My company was opened in 2012 but has not done any trading till now. My registered address is a virtual office address in a buisness complex. (virtual office address are used just for all official communication with HMRC when we dont want home address to be out on their site). So if Home office decide to visit me for audit where will they come?
3. I have supported my application with VAT registration, PAYE registration, Employe liability insurance for upto £5 million,Buisness bank account statements. Is there anything else i need to give it to them. I have a online HR system but i dont know how i can show that on application?
4.I am the sole owner/employe which is intend to trade once i get the license. As a startup buisness do i need to show them anything in particular?

All replies are much appreciated. Please Help !

Regards
Seema