Transformers costumes that turn into cars and jets

Mark of Marksprojects has built a series of working Transformers costumes. They can transform from robots to cars/jets while you wear them. No build-logs but he sells the transformable versions for nearly four grand (!). Someone needs to deliver a set of open source plans for these!
Link
(Thanks, Marsolais!)

Update: To clarify — There's an audience for these things who will pay $3,750 for this. They're cash-rich and time-poor. There's another audience who will never pay $3,750 for one of these, but might happily spend a year putting one together in their basements: time-rich and cash-poor. The time-rich people would likely never avail themselves of a set of plans for this, so a set of open plans would not displace sales of the costumes, but it would encourage a generation of cardboard hackers who'll go on to deliver new and better costumes in years to come — it's the best of both worlds.