South Devon - help me plan a camping trip in mid-August

[KisstheTeapot14]

Any suggestions for a nice campsite near the sea? what are good areas? good beaches? I am more of a glamper but we can't afford £600 to 800 this year for a week in a big fancy tent...small and non-fancy on the menu (only 3 of us)..but location could make up for it.

Hol starts 11 Aug for a week (we will stay with a friend at Teignmouth the week after)

DS obsessed with seaside and plays all day in the sea - rain or shine!

Also any companies that set up a tent for you at a campsite - there was a company called pitch my tent on the Gower. We could borrow camping stuff from my sister but easier if we can arrive after a long drive to it all done!

Anything similar in Devon?