[Q] help? convert boost galaxy s3 to sprint topic

ok so i just sold my galaxy s3 boots mobile phone to someone and i need to make sure it can easily activate on sprint.
i know that sprint and boost are on the same tower and use the same freq. but i was just wondering do i need to change any prl's to do this or is it as is? i have been thought some other prl's before for other reasons and a believe i put it back on sprint or boost prl.
the esn is clean