So I went to the epicerie bio and bought some proper flour:
Made a dough with 50% of each. Still interested in the idea of a plait being a good solution when there isn’t anything much to support the dough. So I did a turban (if you can call that a plait).
Have to say that for a 940g dough baked in a toy oven for an hour at what it claims to be 230C, it was pretty good.