Yes, it's unfortunate the "official" dealer has to sit and wait without any cars while grey imports drift into the country. That's how my car arrived - Bauer Millett couldn't get C7s and I ended up having to buy an unofficial import. Crazy.
Well we know that the 2LT Z51 spec will be the "minimum" spec for UK cars (no base 1LTs here!) but will still be plenty of option "goodies" to spend your money on no doubt, including 3LT package. Link from Ian Allan's website: