I need someone or someone's AI that can build out a new sympy integration in python

I'm trying to build out a new functionality in Sympy python specifically for a summations. If you've never used sympy before you will not understand this. Inside the indexes of my summation, (when you use x.subs), the summation stores values when they occur. Since all the stored values are spread out, I want to move them from where they are, to a range that I will set (for example indexes 1 to 1000), and then I want the values that are stored to always be consecutive in indexes (all next to each other like if I were to put them on index 1 2 3 4 and 5 depending on how many values are in the summation). I want them to do this and then stop when all the values in the summation are exhausted and then all the values without stored values should just be 0. I've tried to build out this new integration but I'm having problems. I'm offering $260-$280 for this. I was also thinking about someone creating an AI that can do this because ChatGPT or other AI's won't be able to solve it. If you could teach the AI like sympy and python so it can generate code for the best way to do this. Please message me if you are interested in this project. I'm only interested in results so you won't get paid if you don't do everything I asked for.