So all the DNA for Spinoconstrictor should be plentiful in your inventory so the only thing you need is the Epic DNA.
As I pointed out in another post, you would need about 4000 Epic DNA and a little luck to get Spinoconstrictor as a level 21 Unique. To get to level 22 would be about another 1000.
To get to level 23 it would be another 1400, To get to to level 24 it would be about 1800 more. To get to level 25 it would be about 2800. To get to level 26 it would be about 3200. So thats about 10200. There is a variation of possibilities of it being less or more, but this would be maybe 8000 at the least and 12000, with a probability of about 95%. Don’t forget to add in that original 4000 amount,
A few people in my alliance have found the epic dinosaur easier to shoot using the veteran drone. They are getting about 200 a clip, when they see it. Not me. I stink, but for them it is about 200. So in theory they would need about 70 Epics to shoot. Over a 10 day period.