the tc4 chassis kits will stay in production.i just have not been too happy with AE.i dont know if i am going to keep supporting there kits.i may just end my journey with AE kits with the TC4 and 12L4 chassis kits.im really sorry for jumping the gun and making the announcement.i was all ready to go for a bit and have some real cool things that were just about ready for the machines.i may persue these projects somewhere down the road but at this time i am just not into it.i hope you guys understand