Very good!I've faced this before. Here is what you can do to make it so you get what you want:
1. Find out who is the stage manager and call them. Don't text - texting when you could be calling suggests you lack confidence and social skills.
2. Show up very early and assess the stage, what it is like to load onto the stage, what the sound guy has available and what he has to deal with in terms of other instruments and vocal mics. The easier you make his job, the better your chances of pulling off the kit swap.
3. Get your kit set up and ready to load onto the stage. Cymbals, stands, toms, pedals, everything in its place and ready to put up.
4. Bring so help so you can move the house kit aside quickly and get yours up. Put everything back exactly as it was when you leave. Thank people who help you and thank the sound man.
I have my kit (both) arranged so that they can be put in place in less then 5min's for my 6pc rack kit and even LESS time with my 4pc.
I don't even think that I'll need to move the house kit since there is a drum riser in place. I'm perfectly fine setting up on stage level with the other band members. Actually I kinda like that over some flashyass riser.
Bottom line is that I am and always have been flexible. I just get tired of the percussion taking a back seat that's all.
What do you call in individual that hangs around musicians?..... THE DRUMMER! LoL!