Ditto on Tony's comments. Unless you can set up proper growing conditions your trees will probably fade away from lack of sunlight, humidity, etc.
Your best bet is to get a tropical species that does well indoors or rotate trees through for a week or so but no more, returning them to their outdoor location to recover.
Although you are expecting your bald cypress to be vergreen all year, you've acquired one of the few "deciduous conifers" - it will drop it's foliage in the winter...
for some pic's and training advice try cajunbonsai.com and gnobs.org
For general advice there's other areas of this site,
evergreengardenworks.com
And the IBC Gallery
http://www.internetbonsaiclub.org/a...ernetbonsaiclub
Their training is not all that different than deciduous trees. You could reduce one's height and rootball enough to get it into an oversized pot and begin training it while overpotting the others and letting them grow larger to give you trees over varying heights. These, again are outdoor trees...
Good Luck,
Jim Stone
TX