I am the guy that runs Hackmonkey CTF's done a prelim one at Defcon last summer for attendees. I am building a new event for 0x00sec to play on it will run for 1 week.
I am however lacking RE, and pwnable challenges. I have a ton of forensic and crypto and trivia, and some basic seek and find flags. Anyone willing to lend a hand it would be most welcome.
I modified the FBCTF platform to handle my needs, and I have some custom docker images and python scripts to spawn a fresh container on SSH socket connections which can probably be modified for other connections easily. Hit me up for infoz.