It comes from Bulgaria (an EU member), so you should have no problems with import duties or VAT being charged on import.
Shipping to or from Bulgaria is not much more expensive than shipping in the UK.
Frame and cage looks very lightweight, cheap maybe even flimsy, it may or may not be made from a cheaper softer alloy, I doubt if it is made from a hard aircraft grade alloy like 7020 for that price. I like the look of attachment points a nice simple design, but I would want a closer look at the arm to frame attachment before buying because it may not be strong enough. it looks like the type of frame and cage that will easily bend if you fall over, so not ideal for a beginner.
Netting is inadequate - needs modifying.
You should not have too many problems with after sales as far as the engine is concerned, because you can deal with Vittorazi direct.
Good price, the price is not 'too good to be true' the Moster engine costs about £1800 (trade) and about £1000 for a relatively cheap frame, harness and wooden prop makes it a sensible price.
If you get one, I would like a look.