I reccomend find a spot to do it that is on a slope so you have a landing but if not build the kicker then go to wherever your starting point will be in the run up point straight down and hit the jump where ever you land build up some sort of tranny, doesn't have to be huge but big enough that where you landed should be in the middle of the landing.
I have never had to build my own landing for a kicker. I always build jumps into slopes so I can get speed and have a tranny to land in but i expect that what i said above should be fine. I have had to build landings for like drops in urban spots and all i do is pile snow into a bank so i have tranny to land on