I have an F4 that I love and it is in super great shape, so I am very apprehensive of learning to stunt on it. I think I just wanna keep it for riding and cruising with friends. But I came across an F2 for less than 2k, <20k miles, a few upgrades, and overall basic maintenance done. Should I spring for it?

If so, what are some basic needs for stunting? I've seen some stuff for rear brake lever relocation to the handle bars. I also realize sprockets are important and will be investigating sizing strategies for that. But I am concerned with oil starvation from the bike being vertical so often. Do you guys run a second sump/pickup or a low oil pressure indicator? Also will the stock brake pads/rotors/MC offer sufficient braking force and bite?

I also have a line on an F4i that's built to stunt, but its double the cost of the F2 and I am just a beginner at best in the stunt department.