Hello, Having a limited budget and a small house I need some extra space, but really can't afford an extension or new conservatory, so am thinking of getting a used conservatory from ebay and building it myself. My query is about possibly having to modify it. I want a glass roof, so that will fix my size dimensions 4x3m. I can have a proper concrete base built, as have a builder friend who would do that. Could I then just fill the sides with a my own design? I fancied French doors at the front and different sized windows at the side - maybe get my builder friend to put some bricks in where needed. Could this work? I've seen lots of good, used conservatories on ebay, but not one that exactly fit's my needs, so I thought, as they are quite cheap, get one with the right size glass roof and then use the sides and parts of others. The bit I'm not sure about is would they be able to fit together? Is it just a case of bolted upvc frames together or to brickwork and then sealing? how would a roof join to my sides? any help or advice would be appreciated. Thanks.