Okay that's nice.
Take all the time you need, get 66,67,68 and 69 then share the code when you have gotten enough resources. The sky is the limit. as of right now, if everyone else were thinking the same way you're thinking, Pollard Kangaroo would still be hidden until now, he'd be hoping to solve all the puzzle before releasing the code. what do you think the puzzles are about? 1+1?
The 1+1 stages are all over right now. the bruteforcing part we currently are trying to solve is 66 bits. i know you have a magical code though but if it takes you 1 year on your code it takes everyone else nothing more than 100 years, in regard to the resources or more years for some other people without the resources needed, if you waste too much money to get the resources and it turned out   to be unprofitable. what point does it make then? because after you calculate the expenses to run all that machine then you would understand what it's called. left alone, 67 bits is double 66 bits so imagine you will take 2 years to solve that one.
If the resources stops becoming profitable then what point does it make trying to bruteforce a key that won't yield any profit after expenses and time spent has been calculated. we can all let you know that puzzles are for fun and not for funds. when you finally realize that, you will think twice after wasting about 5 years using your code without finding any keys whereas if you had made it public, someone might develop it and make it better for your hardwork.