Hey Ernie - How long is your project/how many days of principle photo will you have? I am new to the BMPCC; the $999 price point is great, but to get a full rig off the ground its going to cost you closer to $2500, especially if you want to shoot handheld/exteriors...unless you already have enough modular items to build onto the camera. I have a lot of EF glass with a Kipon adapter (waiting to order the EF speedbooster) but depending on what you are shooting a m43 (zoom with a range) that gives you wide capabilities may be a necessity, increasing costs.
Heres what I have with my pocket cam:
Kipon adapter (i dont own any m43 lenses...sigma 18-35mm is my wide)
Ikan Tilta rig
Atomos Ninja 2 (unfortunately my monitor as well)
HItachi 500GB 2.5" HD (and few 64GB SD cards)
3 generic batts