1. uc_aac The Ajax Attribute Calculations module works in tandem with the Ubercart
module (http://drupal.org/project/ubercart), adding the ability to
dynamically update an Ubercart customer's product view page when attributes
are selected and changed. (the unit price)
2. We have written a somewhat sketchy code that allows attributes to be given volume breaks
http://drupal.org/files/issues/uc_product_discount_range.zip
this code needs to be gone over and see how you could integrate with uc_aac
(the unit price based on a quantity range)
3. Create a 'grand total' field somewhere that allows the user to type in a QTY and then aac would
look at the attributes price breaks * qty = grand total
QTY * attributes sum = grand total == All dynamically driven by uc_aac so that the price automagically updates.