One-sided, arched Pergola (with one post)

Materials for a glue-laminated, arched, one-sided Pergola:

4 rafters 5 x 9 x 63cm
2 support struts 9 x 9 x 63cm
3 glue-laminated timber arched bearers 2,7 x 9 x 189cm
1 upright post 9 x 9 x 240cm for inserting into post anchors