I spend time on the site once Zach has gone down for the evening, I code all of mine from scratch which probably adds to the complexity, I find wysiwyg editors very restrictive especially the free ones.
The stall thing sounds like a really good idea in theory, the practicality of it though may not be as good, like you say the outlay may not be covered by any profit, I have been contemplating a bricks and mortar type of affair but unless there is a huge market for the product in the area its not likely to work. Most people including myself seem to have accepted the fact that the only place you can really get cloth is online, which is a shame as that leaves the sposies with their grasp on the mainstream market.
Are the other nappies a bit like a Fuzzi? getting a sample from manufacturers is like getting blood from a stone. My advice would be to go with your gut feeling, If you think they will sell then go for it, but only commit to small qty's until the market for them has built up.
Take the coolababy, nobody stocked them, and I took a gamble which has paid off.
If you are wary then dont do it, buying them wholesale is alot like buying a BTP kit, you should really try some before you commit to a load.