Good fins are a lot more than $200-$400.

http://ristafins.com/kite/fin-selector

Go for the repair. It is not rocket science. But it will cost some $ to get the epoxy etc. If you know someone who already works on this stuff then beg their advice to minimize your learning curve.

...and the fins that come with that board cost half that, everybody knows rista is the top end.
Probably don't need rista fins to go with a diy repair first race board..

This board does not come with fins alone it costs $1200 dollars i will use this board as my backup board and will have a Aguera or a Mikes Lab for my main competition board.