Hi Dave,
First of all, there is no such complex example. Also there is no Telnet example fo KSDK 2.0.
Under older KSDK for MQX
C:\Freescale\KSDK_1.3.0\middleware\tcpip\rtcs\examples\shell
We have separate examples, which you will find under
C:\Freescale\SDK_2.0_FRDM-K64F\boards\frdmk64f
there are also usb examples and lwip.
C:\Freescale\SDK_2.0_FRDM-K64F\boards\frdmk64f\usb_examples
C:\Freescale\SDK_2.0_FRDM-K64F\boards\frdmk64f\demo_apps\lwip
and needed documentation
C:\Freescale\SDK_2.0_FRDM-K64F_original\docs
The best way is start with some of USB demo and build up your code on this demo (add lwip etc).
At the moment there is newer GUI for Project Generator, v.2.3

Please see https://community.nxp.com/message/841733
I very apologize for the late response.
I hope this helps you.
Best Regards,
Iva