BANZETA

Hi all, I'm after a bit of advice please, I've currently got a Special Edition 'Bug Eye' 2.0 GX Sport (Morette headlights and high rear spoiler etc) which is just about to be put on the market as I'm about to order an 06 WRX. My queries are (after loads of searching on this site) as follows;
I'm planning on getting a WRX from Motorhouse 2000 near Mansfield (same price as Motorpoint £15699), having read the many posts on here about Euro imports can anyone tell me if the Motorhouse cars have ;

1. Underseal?
2. Side airbags?
3. 1st or 2nd owner on V5?
4. Which make of alarm/immobiliser and tracker do they fit for the £300 they are asking?
5. Do I need to inform Direct Line its an import?

Any dealings with Motorhouse good or bad would be appreciated and any other advice.

Thanks for any replies.

Dave