Math was wrong...
Are you sure it is 2,000 IU/mL?
That sounds very high concentration, here's why:
2000 / 250 = 40
So you have 40 doses per mL. So then, for each dose, you are going to take 1 / 40 = 0.025 mL of liquid (this is the same as 0.025 cc). On a standard insulin pin, the tick marks range from 1-50 (or 1-100 if you have a 1 mL slin pin). So you would have to draw up in between the 2 and 3 tick marks (for 2.5). This is very imprecise and not a very good way to do things.
If I were you, I would cut it by adding another 1 mL of BAC Water so you effectively halve the concentration. That way you can draw up to the '5' tick mark (0.05 mL, 0.05 cc) for convenience.