My motorola lcd touch screen brokened
The screen of the a1000 model is composed of 2 parts, the lcd display and the touchscreen pannel wich are both secured in the same housing, protected by a metal frame. Even if you only broke the lcd screen (and the touchscreen is still ok) in most cases, a service center will replace the entire screen assembly. It will cost somewhere around $100-200 depending on wich service center you choose. If you try this operation in a service center, the costs will be greater because you will buy a new screen and pay the labour part. It would be greater if you can buy a second hand broken a1000 with a good display and change it yourself. A1000 and the P9xx series are very easy to dissasemble and work with. You may receive further informations and pictures if you reply with this request.
The short answer would be to try to avoid a service intervention to the phone. It will be very expensive. the a1000 model was made in 2003 so the spare parts that can be found today are expensive and hard to find. Try finding a second hand unit, you may strike a good deal with it.
hope this helps,