Sunday 27th April - London to Canterbury TDF Route

I'm doing this on the weekend, camping and cycling home the next day.
Did the best route get resolved ^?
Any camping recommendations for Canterbury?

I'd like to ride a scenic route, feck all hills and a different route on the way back, also with feck all hills.
Day 2 of tour training. Will be fully loaded.

I ended up going down the a20, wouldn't recommend it!