If you've done C41 successfully you will be fine with E6.
I used the 3 bath kit the first times but have graduated to 6 bath.
The 6 bath are kaput here in the US now so I may have to go back to a 3 bath.
If you dig velvia punch also try some Ektachrome "VS"
VS has amazing reds and oranges and is a stop faster then the good velvia.
It's disappearing in the US but IDK availability where you are or your vacation spot.
Have a great time.