I'm in an 8 team NL only. Every year for the past five years, it's taken 200 HR, 200 SB, 100 W, 90-95 SV and 1,300-1,350 K's to finish first place in each category. Assuming a straight 35% less needed (8 is 35% less than 12) - you would need 135 HR, 135 SB, 65-70 W, 65-70 SV, and 850-900 K's.
Looks like you have HR and SV's to trade. BUT - you look OK already in the other categories.
Payne Dailey is right though - you need one more than the others to win the category. Every league is different. With you projections (assuming they are accurate), I'd say sit and wait and see where you are in June. Then deal you excess for your needs.
"Life is tough. But it is even tougher when you're stupid." - John Wayne