That could be a Victoria or a Nirvana, both of which would be less than E150.
I havent seen a 1/2 mtr yacht though, the smaller ones have been 65cm like the JIF, but they are from plans and not off the shelf.
Both of these yachts contain everything you need to build them, with the Nirvana even having the radio complete and only needing some assembly, you would be on the water in 30 mins.
I have the Nirvana and its a flyer, nice shape, dry and easy to store.