There's one question here I was really curious about the answer to:

I want to be able to use one of the lights outside and at far distances (let's say to light a subject on a mountain while shooting from its base and getting the subject illuminated at dusk time).

There are a few difficulties with this. For one, positioning the light: placing the light at the base of the mountain and shooting towards the peak would be casting some light upwards and that would always be an unflattering photo. Also, with the light so far away it will be harsh and also create an unflattering photo. But, looking at the math:

guide number = f stop x distance

So, for arguments sake, lets shoot at f4. Mount Washington in New Hampshire is 6288 feet tall, and the visitor center is at 2032 feet, for an elevation change of 4256 feet (or just shy of 1300 meters). So, that means: 4 x 4256, for a guide number (in feet) of 17,024.

• The SB700, when shot at full zoom at ISO 100 gives a guide number of 125. 17024 / 125 tells us you would need 137 SB700s to match that.
• I'm happy to say I invested in SB900s, which have a guide number of 172, so I would only need 99 of them! (At the same ISO 100, zoomed to 105mm.)
• Let's go for something bigger but still portable: a Metz Mecablitz 76 MZ-5 (zoomed to 105mm, shot at ISO 100) has a guide number of nearly 250. You'd only need 68 of those!
• Ok, so maybe you'll need to think of "portable" as "bring a power pack or generator." Elinchrom's BRX 500 has a guide number of 270, so you'll still need 64 of those. (Though that measurement is with a 48 degree reflector; I bet you could get a little higher guide number with a tighter reflector.)