Okay... dug out my papers.... on what I used.
5-6 oz. leather for the skirt. (I don't know how much - I had to buy a whole skin in any case).
1-2 oz for the lacing - which also got used on other projects. I didn't have enough to do all the lacing because I'm a lace making-idiot. Hence, I had to buy some lace rather than a new hide just for the lace. The best I found was 3/16" natural lace from Tandy (I think it is Kangaroo skin) comes in 25 yard rolls that can be dyed at the same time you dye the squares.
15 columns is what I think we came up with and 12 rows. Depending on your size you may need to add/subtract a column or row. Here is the link to the oblong punch.
http://www.montanaleather.com/osbornepuches.htm. You want the 1/4" Oblong Punch.
I cut all my squares 2 1/4" tall.
Widths (I actually measured in metric - this is as close as I can get it in English/American measurements)
2 Rows: #1: 1 3/8"
1 Row: #2: 1 5/8"
2 Rows: #3: 1 3/4"
1 Row: #4: 1 7/8"
2 Rows: #5: 2"
2 Rows: #6: 2 1/8"
2 Row: #7: 2 1/4"
The pattern called for 3 rows #7 - but I cut it wrong...
It's worked out okay for me in any case!
You must use Leather dye on the leather... There is no formula because each skin is different. (I think there is a basic one somewhere on the forum here - but it is only a start) You will need Purple, Cordova (Red) and Blue along with the extender at a minimum. From there you will need to experiment and see what works on your leather. I also ended up using black and brown in my mixture - though very very little of each.
You can either airbrush, or dunk or use the swabs - it's up to you how you want to do it. It'll be messy and stinky no matter how you do it though!