The information I have from the Devon Family History Society shows a William Hine marrying a Sarah Studley in 1787 in Clayhidon, which fits time-wise.
Would appreciate knowing who their other children were... and who Sarah's parents were.

I hope I'm getting better at doing look-ups ...
Recently I have bought the microfiche of Clayhidon because currently these registers are not available as downloadable images and only some are transcriptions on FindMyPast.
... William and Sarah Hine baptised dau Mary 6 April 1788 at Clayhidon. I have not seen any of their other children after her.
There are oodles of Studley folks recorded at Clayhidon, going right back to 1600's but I have not seen much of Hine.
Your Sarah married in 1787 so if she was 24 then her baptism might be 1763 ... if she was Clayhidon born, and there is one.
Sarah dau of Jotham and Joan Studley b 26 Aug 1764. Very neat.

Salute,
Janelle