Longmen Grottes and Shaolin Temple in 1 day

Could you recommend me what is better to see first(we will arrive to Luoyang railway station from Xian)
-is ite better to go first to Shaolin (what bus goes there,how long does it take to spenvisit temple and see the Show there)
-how to get back from Shaolin to Longemn Grottes-by bus or taxi
-how much is taxi form Luoyang Station to Shaolin?

or maybe first Longmen Grottes and to Shaolin-we have to catch train to Xian at 20.19

-we will be with child (3 years old)-are there smooth and comfrtable routes for taking baby stroller?
Sylwia