Applescript: terminal unrar command

I would like to know if it's possible to make an applescript of the following terminal command(s).

cd

unrar e -r -o- .rar && find ./ -name “.r*” -delete

Also, I would like to know if it's possible to tweak the "unrar e -r -o- *.rar" command.

Following situation:

Main_folder\SubfolderA Main_folder\SubfolderB Main_folder\SubfolderC

when I login in to terminal and use the command => unrar e -r -o- *.rar

Everything from SubfolderA / SubfolderB & SubfolderC will be extracted in Main_folder

Now my question is: Is there a command that will extract the "*.rar" in the same subfolder as where they are stored.

=> for now I have

on run {input, parameters}

tell application "Terminal"

activate

do script with command "cd /Volumes/******_storage/******* && unrar e -r -o- .rar && find ./ -name “.r*” -delete"

end tell

This works fine except that subfolders are still extracted in /******** instead of their own folder and that my files ain't deleted.