Hey guys,
I’m happy you have found the solution to your problem 
Or that the problem found the solution for itself. 
The strom32 has already been used with the simplefoc for some time. It is a really great baord!
@Owen_Williams will let you know more about it.
There is also a bit older thread of @blackblue007 with very detailed explanation how to configure the strom32 with foc.
https://community.simplefoc.com/t/code-adaptation-for-strom32-bgc-v1-31-3-x-bldc-motors-with-simplefoclibrary/21/4
Now in terms of the l6234 circuit, it is very very very simple. Few resistors and few capacitors. I would certainly advise everyone who is interested to look into it and try to design their own board.
I am not sure is the miniature version of the l6234 board in a short-term future of the simplefoc project but it is something I am thinking about. I would say that the price of production of the such board in would be 7-8$.
At the moment the v2 version of the shield is in the testing phase. With current sensing yes, I am excited really.
Here is a current project: https://github.com/simplefoc/Arduino-SimpleFOCShield/tree/dev