In the end, I had several options:
It has been interesting looking for acceptable slippers. Although none of these three options claim to be historical reproductions, one cannot but notice that this kind of footwear has not changed really that much. At least, these ones will hold me until my sweetie can make me some raised shoes, which will rock.
But for now, I do expect to have some presentable footwear to wear with my Ottoman garb.
That is, if I manage to finish it on time.
Here's to hope.