Kerbs

Hi, I'm looking for some advice, my domestic alarm died on me early hours the other day, control box has gone, wont power on at all. I'm looking to replace it, and was thinking about the items below, 1..ADE Honeywell Accenta Poly Gen4 with LCD Keypad 2..ADE Honeywell Informa Speech Dialler I'm planning on using the exisiting PIR's, internal Door Open Sounder and New Texecom external Sounder, I'd like to tie my garage into the alarm system if possible, what would I need? So 3 x questions 1.............Would the above work with what I already have? 2.............We have had a new Wood effect UPVC front door fitted, and the old door sensor is white and also wont work as i need to pack out the door frame sensor to align up with the door, could someone let me know what I need to order please? 3.............Want to include my garage into the alarm system what would I need please? Thanks Nick