It's about £970 quid. A lot of money, but if you consider the work that's gone into the design, that's only 129 hours at minimum wage and I bet it took many times that. Add in the cost of the 3D print, another big bill, and it doesn't sound so bad.
It all depends how much you want a model like this. If you don't have the skill to do the job from scratch, and want such a boat really badly, it's possibly worth a go.