50 dollars is what I charge as well for mini details, wash, clay, wax, interior wipe down, door jam, tire dressing, interior vacuum. Its cheap, but its like 2 hours so it works for me.
I prefer to use machine to apply wax. Save the elbow grease. why tire yourself out? it doesn't take long to get an extension cord out and apply wax with a machine.
use collnite 845 a liquid wax to save time. i also like 3m performance finish its a sealant. both of those products last 4-6months, look great, easy to apply and remove and cost less than 15 bucks.
personally i don't like AIO. they only protect for a month, maybe 2 and m205 has more cut and will have better correction. aio isn't really worth it imo, atleast for the type of detailing i do. there is a market for aio. if someone wants a quick and dirty correction use ulimate compound with 2-4 passes and then apply a wax. UC tends not to need polish, thats how it was designed.
edit, spray waxes can be faster to apply. i don't like them, they just don't last very long. i rather spend an extra 10mins and do the job right and have it last for months longer.