How to apply different discounts based upon the product's attributes?

I'm building a cart for a locker company. They have several models of lockers and each model has up to 25 different styles to choose from. I have added each locker model as a product and then created the styles as attributes.

There are a few problems I've encountered with the pricing regarding quantity discounts. It seems that the quantity discounts are based upon the default price of the product. The problem that I have is that my client's discounting varies from one style of locker to another. This means that there is not a standard rate discount across all styles. Each style has different amounts of discount.

So, is it possible to create one product which then has 25 different attributes and each attribute can have it's own discounts that are independent of the others. Or, do I have to add each locker style as a separate product?

Example:

Model 1000, Style A; Price: 1-14 = $263 / 15-49 = $257 / 50-99 = $251 / 100-249 = $246 / 250 and up = $230

Model 1000, Style B; Price: 1-14 = $270 / 15-49 = $264 / 50-99 = $258 / 100-249 = $252 / 250 and up = $247

Zen Cart does not have support for dependant attributes....

So a workaround with what is available is your only solution without extensive custom coding