Pricing strategy with respect to customer site.

Summary:

Customer is having multiple sites. I want a separate price list with respect to customer site which meant i will be selling the same item to same customer at different prices basis customer site. I am able to configure customer specific price list, how do i go a step ahead and configure site specific price list.

Content (required):

I tried by creating a condition column named Party Site in matrix class Pricing Segment and passed the Site id (took it from backend table) which is ideally not recommended to be performed by user. Is there an alternative to achieve this?