Price levels in Marketpress for Retail, Dealer, Distributer, etc.

I need to do price levels based upon Customer ID. Could be set up as fixed price or % of retail.
Retail customer: $100 or 100% of retail price
Dealer customer: $80 or 80% of retail
Dealer 2: $70 or 70% of retail
.
.
.
Distributor: $50 or 50% of retail.

Is there a way to do this already? What other plugins might I need?

Also would like to see a field for COST on each product.

Thanks,
Greg