The Woodforde's kits do seem pretty good. My favourite in terms of being just like the real thing is 'Nog'. It's a dark winter ale.
But to be honest you can't beat a real ale from the barrel - preferably racked behind the bar so the barperson just has to open the tap, not even using a hand pump. I enjoy bottled beer but it ain't the same.

Halibut - the Scillies are awesome. I've been back many times.