Quotation for Basement Construction

I require expert assistance drafting a quotation for building an underground dwelling space on a residential property. The proposed basement construction would involve excavating soil to create a foundational structure beneath the existing residence. Skilled tradesmen proficient in this specialized field are sought to accurately estimate costs for all necessary materials and labor. Quotations should include line item pricing for excavating machinery rental, structural shoring systems, waterproofing membranes, concrete pouring and finishing, drainage systems, electrical rough-in, and any other anticipated expenditures. Adherence to all applicable building codes is imperative. Experience designing and installing durable, long-lasting basement spaces preferred. Ability to clearly convey budget projections and outline payment terms a must. Knowledge of local permitting processes an asset.

P.S. I am not looking for a contractor. I just need expert assistance in providing a detailed quotation if that makes sense.