Catherine,
I was thinking we should stick to the "fair market value" guideline. I think this should stay as close to the $300 out of pocket as possible. It's very likely that some people do have rare corals in other tank systems they could frag that are worth much much more than our list prices above, and then only have to deduct $10-20 bucks for a $100+ piece. I do think the list gives a good way to stock the tank cheaply (based on the what you deduct from the budget) but the true out of pocket would be much higher for someone who doesn't have the same access to rare pieces (ie: fragging another tank, etc)
I think if we use the Canreef B&S Livestock and J&L for "fair market value" it will save you time from replying to a stock pile of PM's and make it easy for people to reference. If a price can't be determined, then the member can contact you.
Just kinda what I have been mulling over since this topic arose.
Let the discussion continue!!