t1m4

Hello there,
I'm new to this forum and have just got myself a lovely R230 SL 350. One thing it doesnt have is keyless go! I have done some searching around and it looks like it is possible to fit just needs a lot of time! and im guessing quite a bit of money! What im after is a list of all the parts that i would need to fit keyless go into my car.
Things i know i need already:
New door handles
Keyless go control unit
Gear shifter
Stop/Start button
I have a star unit so i can do the re-programming that will be required.
Any help would be great,

Thanks,
Tim