Looking at the version of TRS in Offord, maybe this? (simple as you can get)
G - - - - - | D - - C G D | G - - - - - | G - - G D G :|
G - D - C - | D - - D C G | C - G - D - | G - - G D G :|
The main point is that the harmony needs to track the hemiola. Maybe Am instead of C in places. It's from the late 17th century, so 7ths are not in period.