Just put more time and dedication on this beautiful game. The game might actually flourish.
As soon as a decent structure is in place you will know how to fix the cheater problem yourself, just don't understaff it and use it as a moneysink.
TK is a great game, in almost every way it's (potentially) better than TL (and arguably the best browsergame there is), it just-really-needs-some-love! It'll pay off. You will get more players and won't have to rely on income from suspicious individuals.