we are wanting to build a self standing garage, approx 105 m2. it will be constructed from besser block, with a steel pitched roof, it will have no internal walls, ceiling or plasterboard, outside rendered perhaps, it will have 1 x double auto door, 1 x single auto door, 1 x rollerdoor, with a couple of windows. we have one quote so far which came in at $55,000. we thought this seems very expensive, has anyone else built similar to compare?