Looking for a Diecast model of a Double decker bus for my nephew for his birthday

[mbtanumber1]

Hello everyone

I need your help in locating a bus Diecast model of a Double Decker Bus for my nephews up and coming birthday.He is a Bus nut and he takes after his uncle of course lolololo.I need a few good web sites that has a good selection of diecast buses it has to be buses that he can play with not just a modle.He lives in Phila but it does not have to be from Septa any name on a bus will just do.I would really appreicted your help i have found a few web sites but not much that has double decker buses it would make a 6 year old kid very happy on his birthday.God Bless