Plumber Richard and music composer Chris, who has a visual impairment, met 10 years ago and bonded as friends after Richard agreed to become Chris' tour guide on holiday. The pair now go on regular getaways and the south coast of Tenerife has become a firm favourite, so much so that they've decided to join forces to buy their own property there as a winter bolthole. With a combined budget of £110,000, they task Ben Hillman to find them the perfect pad