Loaded Commerce Community

I have searched all over and have not been able to find a contribution that will discount per "manufacturer" - is this possible?

For example I have 16 "manufacturers/styles" of furniture. I would like to offer discounts on 3 of the styles of furniture when the orders reach a certain amount (i.e. 5% discount at $1500 10% discount at $3000 15% discount at $5500)

I have lev_discount_v2.3 installed which works great for discounting all the products. Anyone out there able to adapt this code or make a code that will discount by "manufacturer"?

I would be willing to pay for someone's time to make it - and then you can throw it up in the contributions section for everyone else. I'm running 6.1a - I can be contacted at: jason (at) logfurnitureplace-dot-com