I trimmed the ply and used a 6mm router round over bit to put curves on the edges.
I wanted the glass to wrap around the routered edges, but I am not set up to vacuum bag and don't want to use Xylenol cloth as I wouldn't be able to feather it onto the old cloth on the lid.
I decided to try peel ply taped down to wrap it tight to the piece.

It worked from the top to the sides and partially worked wrapping around the bottom edge, which was the best I was hoping for.
The cloth was a bit dry, but this is 12 hours after application so I filled the weave with resin and 417 filler powder.
The cloth is for abrasion so not too worried.