Hiya
You're coming to the UK, drinking the Grey Goose and Wine etc now will be good practice for when you get here !
As already mentioned, you will pay substantial amounts of duty and there's the risk of breakage too. Unless you're collection contained some very rare or expensive bottles, I'd suggest not bringing them over - there's plenty of booze available here!
Looks like it'll be party time for you ! I did chuckle when you mentioned you'd be mellow over the next few months - you'll need to practice in order to get to UK drinking speeds! - my current record is a 70cl bottle of whiskey polished off between 4 of us in about 25 minutes!
If you do bring your bottles, make sure they're very well packed and secured to minimise chances of breakage!
Cheers! DtM! West London & Slough UK!