Jim full marks for realising that shooting out the door is not the way to go.
The r44 news variant is a painless way to get into the business and the new gimbal has a decent HD camera.
However, the lens falls short for hard news coverage when compared to larger gimbals more commonly in use for news work.
The advantage of installing a tyler mount on a regular R44 is that
you can fit floats and choose a more powerful gimbal (at a significant cost I might add).
Swap helicopters as and when required.
Installing a microwave transmitter (to the tyler bracket) would involve a little certification design and approval pain
The R44 news has a very good comms and microwave setup, but don't signup to one unless you are very sure the gimbal can get tight enough shots, are you transmitting HD or SD?
Mickjoebill