Max Limit According to Payscal Grp for Loan

Hi gurus

This is in regard to the Loans where i have the requirement of Setting the Max Limit according to the Payscale Grp. Pls Suggest me how i have to set up the setting M requirement is

Payscale Group Housing Lon GP Lon

7401 7501

Limit Limit

Director 3000000 750000

AD 2500000 750000

Manager 2000000 750000

Manager 2000000 750000

Executive 1500000 750000

Executive 1500000 750000

Non-Exec 1000000 750000

Non-Exec 1000000 750000

Non-Exec 1000000 750000

How i can Set up this Requirement in the sys

Rgds

M Bharath