By Jon Robinson A proposed 76-storey tower planned for Manchester city centre, which would be the tallest skyscraper in the UK outside London, is in line for a major change. Developer Salboy, which was co-founded by Fred Done who set up Betfred with his brother Peter, is on the verge of resubmitting its plans for Viadux 2 to incorporate a high-end hotel. The updated proposals would seek consent for a 160-bedroom hotel on its lower floors – a change from the previous plans which would have seen the tower constructed purely for residential purposes. If approved by Manchester City Council, Viadux…