|An external drive may not allow you to re-install Windows if necessary. You have a laptop, the concept is portability. |
Take the unit to a computer repair shop and have them give you a price to fix or replace the optical drive.
I assume you found a small hole to insert a wire? Using a large paper clip will work much better than a small one. Only straighten out the first leg of the clip. You need to push kink of hard. Do this with the laptop OFF. The tray should open slightly and you will need to pull it out the rest of the way.
If you are in the USA then click on the link below for a selection of USB external CD/DVD drives.