You would pay import vat, charged on the value of the item plus the cost of postage, on any item over £15 in value (or £40 I think, if the item is a gift). There are lots of different rates depending on the item, but apparently it is generally the same as similar goods sold here so I tend to use 20% for estimates. Then you have the RM handling fee, £8 last time I was charged it, may have gone up?.
So the £45 charger/battery, postage is listed as free so actual shipping cost is unknown, but the charge would be £9 import vat (and a bit more when the shipping cost is included) + £8 handling, so minimum £19. BUT, it does seem relatively unlikely that you'd be charged, on experience so far

. You don't have to worry about customs duty until your item value is over £135 (like, say, a little blue pleo rb that you cannot buy in eu

)
What you get with the update will depend on what you're starting with, there's lots of info here on the forum about the different OS, my two are on 1.1, I haven't braved 2.0 yet after reading about the extended grumpy stage! I think you'd get a brief hatchling stage if you upgrade to or re-install 1.1 tho, I'm sure mine both did.
