Please Help!!!

[kostisbezos]

Hello to everyone! I'm going to buy a 2011 ec 300 soon and I'm a little confused. Owner claims that is a sixdays version

1. Reading this forum ,saw that 2011 six days comes with: Sachs/Ohlins
and Marzocchi/Ohlins. I'll attach some photos ,if anyone can recognise the fork.
(Owner says that the bike is eqquiped with Sachs/Ohlins).
Βefore buying, 300 will be seen by an engineer. Then we will find out which version it is by removing the side cover by it's ignition. I have seen what both flyweels look like. They produce also different voltage right?!

2.Bike has a grey head compare to other GG which have a darker/black color head. I saw few bikes on youtube with the same color head. It's not aluminum.
Does it come from the factory like that? Seems the same but grey

3.Also bike has 300+hours with stock cylinder. Is that too much? I will take dimensions from cylinder and piston,to see if their condition is good.
After how many hours does need this bike new cylinder?

I hope everything go well because the bike rips!!!