Hello,
I could code it for you. I am an expert programmer focused only on NinjaTrader, specialized in indicators and strategies. You can see the positive ratings I have for similar projects in my profile. My preference is always to agree on a fixed price for my work, regardless of the time I spend. That assures you of a final price for the software and takes the pressure off me to get it done quickly. Programming is like in the kitchen, slow stove. Which doesn't mean that in a few days I could have it finished. In any case, I can contribute my ideas to improve your project if you like them. I hope I can help you.
Best regards
Rafa