Rhino/Grasshopper Developer for Configurator (Trial Project)

We are developing a balustrade configurator and require a specialist to build the parametric system in Rhino/Grasshopper.
This first project is for our Aluminium Balustrade system, which is relatively simple compared to others. We already have the DWG files for all components — the task is to program the rules and logic so the system works correctly.
The configurator needs to:
Apply balustrade layout rules (straight runs, corners, stairs, gates).
Enforce spacing (e.g. posts max 1830 mm apart, evenly distributed).
Generate outputs:
Bill of Materials (BOM) with parts and quantities.
Cutting lists for rails and spacers.
Dimensioned layout drawings (to our CAD style standards).
This is a trial project. If successful, we have 5 additional balustrade systems that will be offered as follow-up projects.

Once we this trial job is completed, we will then integrate into Shapedriver which will then be the software that makes this into a live configurator on my e-commerce website. Please look up Shapedriver as they have a lot of good content and will give you a very good understanding of their system. (https://www.shapediver.com)