replace inside paneling over bed ,leak on drivers side

thanks for the come back maybe in the not to distant future some one will have the info..
i had put a wire rack shelf on the passanger side above toe level for towels and such,will remove it saturday and see how hard it will be to remove the front panel.will replace with a sheet of vinalplastic simular to frp.may have to replace side panel at head of bed , have to get busy next trip is 10 nov.
larry