Ive neverbeen in Florida and am probably far from as experienced as others here on the forum (That means you, for instance, Rebelhog

). That saidI can statethat Ive never heard of anyone hunt with dogs at night around here but regulary from stands at night in moonlight with a good scope. Like a8x56, as expensive as you can get, with a really thick or illuminated reticleat best,but it is easy enough to see if your kit works. Shoot at night at a black target and you will know. Quality of the scope is probably a better messurement tool than the following but the exit pupil in darkness of an human eye is around 7mm so all the light that get in that area is useful. The formula Ive been taught for brightness in scopes are this:
objective size in mm/ magnification=exit pupil size in mm.
So if you have a 50 mm lens your optimal magnification would in accordence withthis theory be seven times.
Arund herepigs aremostly huntedwith baitwith hay spread on the ground to make the pig appear brighter against the background. Much like the sand would in your description. Stand makes the shot easier and makes it also easier to determine gender and to find an animal in your desired size.
Good luck sirand keep the forum informed on your progress, will you please!
And then if no other pigs show, we can always check out Willy the boarand his friends livehere
www.wildlife.tv/en/index.htm
3D