AutoCAD 10KL Spiral Tank GA

I need a clean, production-ready GA drawing of a 10 kL spiral vertical tank created in AutoCAD. The vessel is cylindrical with a 200 mm conical top and a flat bottom. Its main dimensions are Ø 2100 mm internal diameter and 3000 mm overall height.

Please show:
• Shell thickness tapering from 15 mm at the base to 10 mm at the top.
• Internal profile with a smooth finish.
• External spiral finish called out separately.
• Black‐coloured tank body (note for fabrication legend).
• Simple, readable labels on every principal dimension and feature—nothing over-annotated.

I do want the internal details visible in section views, but keep the call-outs concise. Final deliverables: native DWG file and a plotted PDF ready for review.