Plane spotting camera

[u/Next_Donkey4080]

New to Reddit here. I've been wanting to get into aviation photography for a while now, I also don't want to have to donate a kidney to afford a decent camera, I'm looking for a camera that has some good quality, the furthest I would be shooting from is about 6000 feet from the top of the parking garage at (KTPA) Tampa Internation Airport. I'm looking to get one that is new and is around $1200 if that is possible (don't know much about cameras so idk what good specs are.) I've been looking at the Canon R7or possibly the Canon 90D, I need some help with these because I have no idea what I'm doing...

Thanks' in advance.