You did not post what your budget allotted by the church elders is, for doing this. If you want something that you will grow into, not have to change out about every three to five years, expect to spend up front $10,000.00 to $20,000.00. That includes having the Octopus cabling and panels installed, flying the speakers, good quality projectors, a Mixer board, amps, signal processing equipment remote monitors for musicians and singers, headset mic's for the minister, handheld mics for the singers, etc..
There are companies out there that do nothing but deal with church's and work with them to design quality lighting, sound, video recording setups. Suggest you look into working with a professional consulting firm on this, to design a system that will last for what you want, and not have to keep purchasing a new piece of gear, because it did not meet your expectations at the beginning. When my church upgraded the current system, and put in distributed audio & video, and installed a new system in the Youth ministry areas, they spent $15,000.00 alone on gear for all of that. That does not include the cost of having the electricians in there, or time it took to tune the systems for the individual spaces.