Starting a detailing business

So, my friend and I were thinking of starting a detailing business. We’re both already “well versed” in cleaning and maintaining our cars both interior and exterior along with our families.

But just with simple supples; hoses, foam cannons, and a little hand vacuum.

So, my question is, what big supplies would we need to start out? Our budget is pretty decent, around $1000. I already know what soaps, brushes, towels, and other stuff to get. Just not sure on what “big” stuff to get. Pressure washer, foam cannons, wet/dry vac, and air compressor.

Thanks!