Welcome, @Guzzi, to the forums! Here’s the story about the Maslow CNC. Maslow CNC (the company) was started by Bar and Hannah with a kickstarter campaign for the original kits. Along with the kits, they set up these forums as well as the Community Garden. After a few rounds of kits, Bar and Hannah decided to get out of the Maslow kit business. Four businesses have stepped in to offer kits of their own. See this post, section 1 for links to those businesses. While Maslow isn’t selling kits, Bar can still be seen in the forums.
Ordering, building, and calibrating a Maslow CNC in time for a festival in July is an ambitious goal. While there is a lot of information on these forums to help you turn your kit into a working CNC router, it still is more involved than, say constructing Ikea furniture. You will need to build a frame from materials (usually wood) you buy, cut, and assemble. There are frame designs on the forums.
These forums are filled with really helpful people, who will do their best to help solve your problems, but it will take a fair bit of effort on your part. I’m not trying to talk you out of building a Maslow. I just want to make sure your expectations are grounded so you won’t be disappointed.