I think you need to define “the normal way” because we don’t know what that is.
Are you planning to do the Stations at home? At Church?
If at home, what are you using for stations? Are the children making stations? What do they already know about the stations?
There are many children’s stations books and online resources.
You could make your own stations-- whether from coloring sheets or as some sort of craft. Then hang them up around your house. Then do a pilgrimage around the house. Make the prayers short-- you don’t need to do the adult stations. Just one or two sentences about the station and a short prayer.
You can make up whatever you want to and make it take however much time you think you can hold your kid’s attention. With 14 stations, one minute per station is 14 minutes-- that’s probably as long as you will hold attention at that age. 30 seconds per station is 7 minutes.
So, decide how long you think it should take with your kids then design your stations accordingly. They can spend more time making the stations-- that is where you can spend your time teaching them about the stations, while their little hands and minds are busy coloring or gluing things.