An alternative, since you are looking for a "fast setup," is to add a motor that can handle that much power. If you drawing 100A at 15V you want a 1500 Watt motor. That would weigh about 300 grams.
If the 10 x 7 prop is a limiting factor (you cannot fit a larger prop) you want to spin that at a max RPM of about 14,000 RPM (the prop's RPM limit). So you'd want a 300 gram motor with a 1600 or so Kv.
Then look for a big wide open area to fly in, a place with nothing or no one to run in to because you'll have a potentially lethal flying wing...