No it's not crowd funded, it's an order from the NRM for Rapido to design and produce a working model on their behalf, it's likely that it may only have the one production run. (deduced from a couple of conversations)
It is clear on the website, you either pay a deposit with balance due when they hit the UK, or pay in full at order time. I paid in full when I had the money as it would only get used for more resin and plasticard.