I will not get into the yes/no of the brace debate, nor the new ruling, but I will say that if you're going to SBR it, lots of people are literally giving away braces right now and there's a amnesty on the SBR tax (a tax on your right to own a firearm....).
So you could brace it, and get the SBR stamp for free. At that point, you could toss the brace and put a proper stock on it.
You have 118 days left if you should choose to go this route.
All this assumes that the brace ruling stands. I expect a fight.