Need an expert GTM person for a quick project

My GTM account covers more 20+ individual branches and, after a previous vendor’s work, it is an unmanageable maze. I have zero inherited documentation, yet I still rely on its Conversion Tracking and Analytics tags—especially the Google Analytics integration—so a clear-headed, methodical overhaul is now urgent. I will break the engagement into four milestones and will only consider proposals that begin with “gtm HFB” in uppercase, confirming you have read every word. Milestones & Deliverables 1. Inventory & Discovery • Export a complete list of all containers, tags, triggers, and variables. • Flag obviously unused or broken items. 2. Duplication Analysis • Identify every duplicate or near-duplicate tag, trigger, and variable. • Produce a concise plan for safe consolidation or removal. 3. Function Mapping & Verification • Explain, in plain language, what each active element does and why it matters. • Validate that critical Conversion Tracking and Analytics flows still fire correctly in Google Analytics. 4. Clean-up & Handover • Implement the approved consolidation plan. • Remove obsolete items, rename assets logically, and publish the cleaned-up workspace. • Deliver a brief knowledge-share document so future teams understand the structure.