There's the good better best model to consider here.
If you want to do them in the same time space, I would suggest doing them before. In the past I would do stretching that had a yoga basis. Now, part of the reason I did them was to help wake-up before doing SFQ.
By doing them before SFQ, and staying relaxed after SFQ then you get more benefit. However, I would also walk to the park and do a sitting meditation and them walk back. It would probably be better to lie still, but I took a nice pleasant walk with the SFQ smile. Maybe not the best, but it's still part of a good overal SFQ practice, and not just the meditation element.
Fit it into you life however you can, and work at balance and flow in your life.
You are perfection.
Iam2