We had fit a 18" wheel @ 9.5" wide with a 4.75" Back Spacing. The 10 will fit but some massaging will have to be done but I would shoot for a 5" Back spacing with a 10" wide wheel...
I would recommend having your aftermarket brakes already installed, THEN use a wheel & Tire simulator to get All the correct measurements cause it will be a tight fit and every little bit will help... We borrow out our wheel & tire simulator to our customers who buy suspensions from us so they get their wheel & tires right the first time and to save them some hassle... There are Much better wheel & Tire simulators out there on the market today that actually mount to the tire you want to use and then you adjust the wheel size and back spacing. That is the correct way to go about stuffing as much wheel & tire under a car as you can... Guessing rarely works the first time!