Deficits? What deficits? As most American orchestras are scrambling for the funds to cover their basic costs, the Boston Symphony Orchestra is unveiling a project which will see the complete overhaul and restoration of one of the country’s great organs, located at the BSO’s Symphony Hall. The restoration will cost $3 million (the cost includes a special endowment which will take care of furture maintenance) and should be complete in time for new music director James Levine’s debut with the orchestra in 2004.