Zen Cart Tools (PHP, XML)

I have a new ZEN CART Store

I need 3 tools, and I want you to price them separately, I want to do tool #1 first to see how your work is, if deliver timely, and how it looks. If I like I will have you finish the other 2 tools.

I have a 20page document that explains everything about the required XML

1.Inventory Import Tools.
My wholesaler will be sending me a daily list of produces in a XML format.
I would like to import into a Temporary SQL dbase for my review.
I will need the import to do the following.
a.Based on a Table -- set my retail price. Example (I will need 10options)
if item cost me $ 0 to $ 20 set retail price to cost x 20%
if item cost me $ 21 to $ 40 set retail price to cost x 25%
etc….
b. Based on a Table is set my Categories. Example (I will need 10options).
if item is wholesaler category = 1 then change to my category=5
if item is wholesaler category = 3 then change to my category=23
if item is wholesaler category = 15 then delete item
else if change to my category=99
etc…
c. I may need some more import options I will have to let you know and you can change me extra.

2. Inventory Import Management Tool.
This tool will display all items in Temporary SQL dbase allow me to select, edit, and then import in to my zen cart database. Should have a zen cart look, I will provide an example of the look later.

3. Customer Order Pending Tool.
This tool will display all Pending Orders (Zen Cart status= Pending), when I select “Send to wholesale button” update Zen cart dbase to “Processing” build a XML file that I can forward to my Wholesaler.

When wholesaler ships product they will send me a new XML file I would like to import this file and update the customer order status to “shipping”