Scale problem

Hello everyone, I study architecture and have just started using grasshopper. I have some elements spread along a curved construction, my problem is, how can i get those elements to scale proportionaly when i modify the length of the curve and when I rise/reduce the number of elements spread along the curve and when i modify the width of the curve...

I will attach the files so you can se exactly what the problem is, hope someone will be able to help.

Thanks