Here is a sketch that a customer sent for comment. See comments below.
OK, I've looked at your sketch which you have obviously put a great deal of thought into as a result of reading our eBooks. It should work but I'll make some comments. It's good that you are planning this carefully, rather than simply throwing it together and hoping for the best (as many do).
1. As your camera modulator is right at the start of the chain you should ensure that it's a high quality type. It's mixing the aerial (note spelling) signal with the camera signal and any problems here will be passed through your entire system. You may even need to add a masthead amplifier to boost the aerial signal to match that of the modulator as combining a strong signal with a weak one is not good practice. Obviously the modulator RF output channel must be chosen carefully so it doesn't interfere with any other signal.
2. The Amp Adder should be close to the second T140, not the first. This minimises any risk of interference being picked up in the cable (because the Amp Adder is an attenuator and weakens the signal). If that's not possible, make sure the double-screened cable is kept away from sources of interference (e.g. mains cables).
3. It can't be guaranteed that the tvLINKs in bedrooms 2 + 3 will operate through a passive splitter. Obviously it's better if each TV set has its own amplifier feed.
4. I'm sure you know this but let me remind you that TV sets in a kitchen invariably get killed by heat and humidity unless the kitchen is reasonably large and well ventilated. Position the set in the coolest place away from the cooking area.
5. Large thin screen displays are notorious sources of interference so tvLINK devices may have to be kept well away from them.
Regarding your shopping list: you may need some cable clips.
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