You say you got spirit … that the team colors course through your veins?Show me.You say you’ve loved this team for years and cheered them through all the ups and downs? Prove it.My search for the ultimate San Francisco 49ers fan took me to the east side of town, out where city streets turn into country roads.It took me through a set of double doors and into a sitting room, where the 49ers’ quest for a sixth Super Bowl ring has created quite a stir amongst the diehards.For this pocket of San Francisco 49ers fans at Prestige Senior Living in Manteca, the coronation has already begun.“Piece of cake,” John Bechtold said, rubbing a commemorative Super Bowl pin on his 49ers cap. These are the unlikeliest of super fans, but a franchise with a rich tradition of winning and an infusion of talent has kept this collection of 70-, 80- and 90-somethings young at heart.