I went down this path when I first built a coyote rifle for night hunting. It started with a Wicked light that ran me $100 new. It sucked, so I bought a Wicked A67 with adjustable mount, because the first Wicked didn't line up. It sucked even worse.
Finally, I said screw this, because I couldn't ID animals that hung up past 175 yards. I bought a Coyote Light, and a Leupold VX-5HD 3-15x56mm and haven't looked back, and don't plan on changing my set up. I thought I was having issues with my scope, but it turned out to be my rifle. So, I highly recommend this scope for night hunting. If an animal turns broadside (I have astigmatism, which makes it hard when an animal looks at me because of the flare off their eyes), I can positively ID them out to about 500-600 yards with this set up. It's amazing the difference a good light and scope make at night. I'd never take those shots, but it sure helps when you're calling, and calling, and calling and then you realize it's a deer putting it's head up and down messing with you. Anymore I just pull up and ID the animal with ease.
Spend good money on your light and scope. If you decide you don't like it, you'll most likely recover 85% of your initial cost or more. But, I'll say this much, once you buy good glass, you'll never buy cheap glass again, unless it's for a plinker.