Baiter is fine for most launches. Beware low tide recovery especially Springs, the end of the slip is marked by two posts, stay between them but do not go past them. It can get a bit choppy when the wind is in the south / south east over a f3.
There is a fair drop off the end of the ramp and you will really struggle to get over it, better to wait for more water than risk a snapped rope.
We generally use a rope to pull the trailer up after recovering but that's for a 7mtr Rib, smaller craft can generally be pushed to the water line to connect to the car.
You can pay the fees by phone and bank card if you haven't got the cash.
Parking in the summer can be crowded but this time of year should be easy.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former --- Albert Einstein