After finishing the ribs off by deburring and dimpling them, I moved onto deburring the left fuel tank skin, the stiffeners, and then dimpling them wih the fuel tank die set.
I really love the dremmel 1 inch scotchbrite wheels I picked up from amazon. They work so well and so fast.
I deburred all of the holes on the interior of the tank skin with the 1inch dremmel wheel, and then the exterior with the #40 countersink.
Moved onto dimpling the skin with the DRDT and the fuel tank dies, and finished the skin dimpling off with the squeezer.
The ribs and stiffeners were all clecoed back into place and I'm moving on with the capacitive fuel plate fitting. Once I get the capactive plates fitted, I'll tape off the areas with electrical tape, scotchbite it with the maroon pad and clean it for sealing.