…or an awful lot less if you want to do it yourself, which really isn’t that difficult once you have the right tools, materials and guidance (and thus confidence!)
I sourced the required materials from here, very comprehensive products for carbon repair of bikes (or fishing rods, boats etc…)
I’m currently starting am MTB hardtail repair, initially filling-in the gouge in the chain stay (a channel wore into the chain stay by the tyre) with the filler advised above, and laying the sections of carbon fabric etc…
If you ever made a papier-mache model when you were a kid then you’re off to a head start! 
