Hey. Once the game is shipped I will convert this page to sell the full game in addition to having the free demo.
In response to your other question, I've already started the manufacturing process of the carts so I'm not taking any more late orders, sorry. I plan on making some extras for me so maybe I will have some at the end of fulfillment so maybe keep an eye out. Feel free to follow me on Twitter or join our Discord (can be found on the KS page).