I am making an bolero for a dress. It is from the Vogue 2267.
I would like to modify the pattern to add on coat tails.
Does anyone know of a pattern/tutorial that will be helpful?

Coat tails look like this (Figure A)

My friend has requested a petticoat for a summer dress. The skirt of the dress is knife pleated along the top so there is some fullness to the skirt.
I going to add the layers onto the individual tiers to create gradual built up of fullness since she has an hourglass figure.
 For example, 1st tier has 1 layer, 2nd has 2, 3rd has 4, 4th has 8.
She asked me if it was possible to use broadcloth/cotton instead of tulle/netting.

I have a few questions:
1) In order to achieve the same fullness as tulle, does it require more broadcloth?
2) what are the pros and cons of using broadcloth for a crinoline style petticoat?
3) any suggestions for other types of fabric to use instead of tulle/netting?

Here is a picture of what I am aiming for: