Cool! Those dates might let someone set up their tank at a school.
I would like to propose a rule change. I think shipping cost should be accounted for in some way. If someone orders a $5 frag on eBay but it costs $35 in shipping, then it's really a $40 frag, though in previous years you'd only have to count it as $5 off your budget. If you chose to order another frag that was $40 with free shipping, you'd have to include the entire $40 in your budget. If you reach a vendor's free shipping limit by spending a lot, then great! If you have to go to your LFS for livestock, an estimate of the round trip fuel / public transit costs would be fair enough. And if you are able to grow out frags from another tank you own, great -- that's definitely environmentally conscious.
The idea is to help viewers have an accurate picture of what it would take to stock a tank. It would also help us learn which vendors have the best shipping rates. I would be fine with shipping costs being tracked separate from the livestock budget if y'all are happy with the budget amounts. In other words, they wouldn't have to count against the contestant, except perhaps when being judged in the frugal/budget category.
Anyway, I hope you can find a way to include shipping costs in the rules that doesn't make it overly complicated. What do you think?