Perhaps, go try it out I'd suggest.
Althought, I wouldn't use
Variable Pulse Lightning Capacitor - Item - World of Warcraft. If you're a Boomie/Spriest/Lock your DoT's will be the main abilities that proc the effects. However, if you're stacking haste, you'll get less crits so you'll get procs less quickly. Also, there is an 2.5s CD, so your DoT's that will be ticking like a mad man won't have any effect on it. Also, you'll have to hope it releases @ 10 stacks, and not one. In addition to that, accumulating 10 stacks will take 25s if you crit exactly every 2.5s.
If you're going for max haste, you should go for
Insignia of the Corrupted Mind - Item - World of Warcraft. You also would want to max out Herbalism for
Lifeblood - Spell - World of Warcraft.
On another note, if you're going for max Haste, I would take
Seal of the Seven Signs - Item - World of Warcraft over
Cunning of the Cruel - Item - World of Warcraft, since the proc effect of Cunning will have an ICD. Also, your DoT's will do much more damage than the proc, and more haste means your DoT's tick even faster. If both trinkets proc, you'll get 6556 haste, with Lifeblood that is 9436 haste, and with Windsong on your weapon and a haste proc you'll get 10936 haste. I think you'll have a really, really nice burst
When I get home I'll make a max haste set. (Taking haste>all)