I thought about £500?
Think you missed a zero out somewhere and it's not before the 5

Ok perhaps that wasn't very helpful but even at £1k you will only be scratching the surface when all the extra things that allows you to do a half decent job are included, wands, hand tools, sprayers, brushes, various spotters, actual cleaning solutions, dust sheets, vacuums, a means of agitation, drying equipment, advertising, training, insurances and there's plenty more.