Closet Humidor help

[livwire68]

My lounge has been plugging along, got some furniture end of last week, waiting on a few more pics so the easy stuff is almost good to go. Sunday my Wife (who works at Lowe's) and I stopped in to check out some flooring, we choose this:
http://www.lowes.com/lowes/lkn?actio...515&lpage=none
I am looking for the right marble for the flooring of the bathroom, and will probally put stone tile in the closet I am converting into a humi. So here are my questions: Should I seal the tile in the closet, I have been to some B&M's where they have just brick down to help control humidity (or so I am told). If I dont seal it may have the same effect, but will the stone hold up to the humidity (should especially since it is a small wide closet, not walkin). Next I need to know what type of paint would be good for the inside (non-toxic, no scent when cured and also hold up to the humidity) 65-70% humidity is not all that much when considering some parts of the country. I know I am not lining the inside with spanish cedar, very costly and could deminish the resale of house having an actual humidor, my way will let me convert it back to a closet easily. Now on to the shelving, I am thinking about going with a viniyl coated metal wire rack, to withstand the moisture. I would like to put them at a slight angle to present the boxes and trays a bit better. I did say trays, this is where my spanish cedar comes into play to give it real humidor ambiance. I will also be putting a double french door with glass (to view the inside) stained to match the flooring, I will be weather sealing the door to make a tight seal to hold humidity. Here is a pic of the door, mine will be wider and unfinished:

http://www.lowes.com/lowes/lkn?actio...989&lpage=none

More than likley, I will be using led lights since they are cooler. Any suggestions are welcome.