Including excerpt text in amp.hbs

The default amp.hbs does not include the excerpt text … assuming, I assume, that it is indeed an excerpt and is redundant with the main text body.

However, I have been using the excerpt as a type of lead in or introduction, so it is not repeated in the body. So I would like to include it in the amp.hbs. I can have a look at this myself and see how I get on (I am not an expert). I thought I would ask first to see if anybody else had done this and could provide me with a bit of a lift.

Thanks.

Incidentally, do others use the excerpt text in the same way as I do?

This is an example of how I am using excerpt …

Collection directions accelerated? Pandemic effects. (lorcandempsey.net)