What is the minimum salary that would keep you happy doing that job for them. That's what you should charge, if you go higher and they say no you'll regret to have gone too high, if you go lower you will eventually feel bad about it as you might feel the situation unfair. Also be very clear on what and how you charge, is it by the hour, for the finish product, if it is for the finish product how many time they can change etc because it can also be endless when a client wants multiple change or ad things, like titles, close captioning, etc, etc. It's even worst if it's friends.
I have use both blackmagic and sony and knowing that you have already a ninja assassin, I think the FS5 with the raw update might be the best bang for bucks in the 6k budget for what you want. It's a great little camera that have built in variable nd (without colorshift), a great dynamic range, slowmo raw 240p in 2k, nice slog3 gamma, it's sturdy, if you want to shoot internally you don't have to spend thousand of dollars on memory cards. And finally it's reliable.
Well i would have agree with you 4 years ago but now there is a huge gap between the canon T2i and newer camera, the most visible beeing the dynamic range. The difference is huge, not only doing side by side but also if you plan to do short film that are ment to be shown in cinema the image quality of those old dslr will hurt the eyes compare to what's coming before and after.
Like with the f8 you can power it from virtually any battery that output between 9 and 16 volts. And on the f8 with 8000mah sony battery you last +/- 9hours with phantom power, so with a 30$ 15000mha battery you last more than you will ever need.
The price is close, I think the main difference is the preamps and some pro fonction like mid side decoding. As a sound guy I would go for the zoom, as a onemenband dslr shooter I would go for the tascam, probably.
That's a great news, it looks perfect. It really makes me want to get one!