Hey, I have gone through the video to see what you want, and have a good understanding of the requirements.
I have built many complicated indicators,EAs, and applications related to forex trading and MT4 in general. Have a look at my portfolio for some examples.
To complete this project, like you say It will all fit into one new indicator, but the old indicators will still have to be in the indicator folder of MT4 for this to work, unless you have the source code to all of these indicators, and don't want to have all of the files in MT4.
If you have any questions, feel free to contact me through the messaging system, and we can talk more over there.
Looking forward to working with you,
Craig.