We would like to tour Fenway over April vacation - I have read dozens of reviews but am struggling to figure out some basics. We will be with two teen boys and a toddler, to give context. Their site says tours start at 9; is it best to plan to be there early? Also, what is a reasonable expectation for time allowance to put aside? One reviewer said three hours, another said 45 minutes..... Finally, does anyone know if I can bring in a stroller for my toddler, or is it expected that he will walk/be carried?