Though they haven’t yet recommended a specific trial site, those pursuing an open-air ice rink in New Canaan are readying to purchase used equipment for the facility that will save hundreds of thousands of dollars. The Board of Selectmen on Tuesday approved a request to put $7,500 in privately raised funds held in a town account toward a 60-by-120-foot ice rink and accessory equipment. The non-refundable deposit is for a rink that the Fairfield County Hunt Club is selling for $75,000, according to Gene Goodman, who has spent more than one year as a member of the Parks & Recreation Commission spearheading efforts to study what would be needed to create an outdoor rink facility and where it may go. “Having looked at every site in this town, every site has its plusses and minuses,” Goodman told the selectmen at their regular meeting, held in Town Hall. “No one is an absolute clear hands-down winner.