Although i cant realy see why a front mount intercooler is classed as been a modification ! Id class it more as an aftermarket part that you buy when the old part becomes worn.
Abit like a CV joint when it becomes worn you change it for an OEM aftermarket part rather then going to Toyota to buy a new one and pay a bomb for it.
Its just an excuse to charge the car enthusiast more money for his car insurance!
Good luck with your sale anyways Bean see looks sweet