On bishorn, the little plateau just uder the summt might make a good spot. Be sure of the weather forecast!
A snow shovel will be very usefull.
Pitch your tent in the right direction and build a wall on rhe wind side. Leave at least one meter hetween this wall and your tent, because snow will pile up there.
You can use walking sticks, piolet, skis, ... as pegs. Depending on conditions, just plant them in thesnow, or make a dead-man-anchor with them. Normal pegs will be useless, and special snow pegs are expensive and too haevy.
Gas stoves only work to about minus 15 celsius grades, if coulder you will need another system for your morning coffee (dont burn down your tent!).
Stuff like this can make for great moments, but remember that adventures make great stories, but they are not always pure fun at the time you are living them
Have fun anyway!!