Buying soldering iron TS80 from where ?

I am learning how to dinner and fix stuff for my self during the last couple of years always used Chinese garbage iron.

I want something portable and I am thinking getting the TS80 (agree watching eev blog seems like the st80 is better than the ts100)

Always where's the best website to get it with out getting a knock off and is there anything to worry about?

Everyone recommend getting a chisel tip too right ?

I already have power back for it ready

Thank you for help and time