CAD for Ballroom Event Layout

I need a CAD drawing of hotel ballrooms for event layout purposes. The drawing should include:

- Basic CAD rendering of ballrooms
- Accurate measurements for:
- Room dimensions (length, width, height)
- Door and window placement
- Column and structural features

Ideal skills and experience:
- Proficiency in CAD software
- Experience with architectural drawings
- Attention to detail and accuracy

Total square footage of spaces is 74,000 sqft
Ballroom 1 = 25,000
Ballroom 2 = 21,000
foyer space = 14,000
ballroom 3 = 4,000
ballroom 4 = 3,200
small rooms = 902, 1,100, 702sqft