This is a real open question.
When you say max rof are you happy with a 11.1 lipo and a titan or are you wanting a full blown dual sector gear build?
How much range/accuracy are you prepared to sacrifice for your swarm of angry bees?
Are you happy with tech work?
And how much money have you got to be spending?
I've not long had mine up to my level and it wasnt cheap, it wasnt easy, and tbh it wasnt worth it. The money i spent in drips and drabs over the space of 2 years realistically could have got me a secondhand hpa setup which would have pretty much given me the same thing without all the hassle.