Babolat in general will support a machine for 10 years after they stopped making it. But this is Babolat in France. Youd have to speak to Josh at Babolat @Babolat Official to confirm what exactly is available in the USA. I would have no issue with buying a used Star 5, but at the right price...
Things that fake babolat usually have/are - grip L2; 'warranty/swing tag' in Chineses, hologram sticker saying its genuine. Also check the weight of the racquet as normally they're under the spec weight; and balance is usually way off too, very HH if I recall correctly
open the packet, wrap it aroud something solid, like a pole or door handle, walk back holding both ends, when youve got bck as far as you can, the mid point will be at the handle/pole etc. then just cut it there
Don't measure when using a set; for most rqts just cut the string in 2 equal halves. If you get something with a big head then you may need to use a different method, but for now just cut it in 2.
There are certain frames when stringing hybrids, such as Blade 104 where you need to cut the set...
My suspicion is that its still being made for Wilson; otherwise there would have been a huge amount made in the past. There are a lot of Wilson players still using the white packet gut ; and that inc players who string a lot i.e Fed, Kei, Serena
Evans is sponsored by Wilson,and has an international contract. This allows him to get Wilson natural gut, and he's using the white packet (pro) gut, not the red packet (retail) gut. If he's paying, then it will be be far cheaper than retail.