Let me get this straight, you want to remain anonymous yet you want me to send you BTC in exchange for some of your 'Sparks' - do you think people are crazy? How is this a 'cryptocurrency' if there is no cryptography involved? You are just asking me to buy an untested and brand new coin direct from its developers. I can go out and buy some Dollars or Yen or Euros right now, which actually have a demonstrated and current value, and more importantly are actually being used by millions of people right now!!
People want coins that can me mined with their hashing power, not bought at a pre-determined arbitrary rate from people they can't trace.
I will be very interested to see how much you are going to sell your Sparks for, as you are essentially setting up your own BTC market at a pre-determined price, thinly veiled as an IPO. I'm sure you will argue this point, but all your plan boils down to is 1) I send you BTC 2) You send me some Sparks over 10 months. This means you have decided the exchange rate from the start, which will very likely be way-off what the market decides they are worth. The market should decide how much a currency is worth, not its developers. With your IPO you are effectively selling a commodity that is a) not tested in the market and b) could easily settle at a value way below what you are selling it for.
This is exactly the same as me minting a load of coins in my basement, calling them NewDollars and selling them to people for $1USD each then hoping that people will actually use them. A currency will only be useful if it is adopted and used widely. Which you cannot guarantee.
All of the other features of your coin sound very good ideas, but MAKE IT MINEABLE otherwise it has no inherent value.
My advice to all is STAY AWAY and KEEP YOUR HARD EARNED BTC (or sell them for Fiat) don't waste them on this nonsense.