If replace alternator,also replace the Idler pulley, belt,& belt tensioner? $? on 2002 Ford Mustang

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Battery new. If I need to replace all these, at what expect cost range?
(2) Answers
If you have to replace alternator I would check the pulleys if they seem to be ok then just replace the alternator
Qualified Local Ford Shops
Qualified Ford Shops For This Repair