gravitate...great concept...and very innovative in both the coin design and treasure hunt.

A couple things...

1.  The community was badly burned (myself included) on the coinographic fiasco.  There will likely be a lot of people averse to doing another big ticket pre-order.  

Even before coinographic, it took a while to get 20 people to pre-order for example ognasty's Nastyfans 5 oz silver, though thankfully it was successful.  He accepted partial pre-orders of $100 up front.

I fear it may take months to get the 35 pre-orders for a big ticket item again, which makes the buyers wait for a long time with money tied up and worrying if the coin will get made.

2. Though I personally have purchased from you and trust you, may I suggest accepting escrow?  Another option is crypto crowdfunding via say startjoin.

3.  Any chance not having this coin funded?  I cant picture anyone wanting to destroy their coin to get the key inside.  Unless the coin can be relatively easily opened and put back together with just a indication of tampering, I don't know how many people will want to do it.

Even if the coin appears tampered with, what stops someone from sending it to ANACS to have it sealed in a holder to hide the fact it was opened?

4.  Can you provide any more details about the treasure hunt?  For example, how many places / countries you have to visit, to get an idea of the level of effort?

5.  The design has a little bit of cryptolator "unchained" in it.  Crumbling banks, people, coins, chains.  I like it.

Good luck with the effort.  I for one will be ordering a coin.