p.s. Everyone's a critic and yes you will have a contaminated one or two but for the most part if your slightly competent and can read and follow direction you will have great success. Before I did Plant Tissue culture, I was told the same thing about home mycology and right now I am still...
I do PTC in school and at home. Go to http://www.kitchenculturekit.com/ and you can use the free how to using household stuff. Also has links you can go to and buy the couple hormones and plant preservatives you will need, they are super cheap. I get mine from school.
How about 100's of...
Just a suggestion, try to build something like the hydro coliseum. You can plant a perpetual harvest that way and always add on. Its known to be one of the best uses of light and offers huge sq footage. Look here to see if your not sure what I am referring to...
Optimal water temp for DWC is 66 to 68 degrees, but you should be just fine in the low 70's, just a little more susceptible to system/plant problems.
Good luck!
SINGLECOLA