Hi and welcome to the Forum! As a Post Reshuffle Player myself, I can indeed confirm Pyroraptor is one of the more elusive locked creatures and it has an amazing Hybrid and Superhybrid.
It will take you some time to get enough copies, from DNA/Food/Coins to Jurassic Custom trades you may be able to grab a few copies so I would recommend wait for a few more copies before buying it with DBs. Seeing your Park Level and DBs quantity, I should say that you must save up your DBs.
But if you really want Carnoraptor and Dimetrocarnus, and can afford the DBs loss, then I say go for it. Then again, best to wait for just a few more.