I bought a new USA Custom shellpack from Gretsch a few years ago. It's Champagne Sparkle. I know, not Glitter, but.......the builders at the factory....did not wrap right to the bearing edges. They left enough bare shell exposed so to allow for a very easy fitting head - the drums tune easily. My 2c would be to do the same - leave some bare shell. If you are interested in leaving the space I will accurately measure the distances (the bare exposed shell) for you so you can get an idea of what to do there.
I will say this....be carefull NOT to take too much off as it will show below the Counter hoops and that is not good. I bought a Gretsch 8x12 StopSign badged tom in Silver Glitter a few years ago on the Bay. It was not recovered - it still had to original wrap - but someone was having trouble fitting heads and cut the wrap back from the bearing edges. They didn't measure properly and the only way I can put heads on this drum so the bare shell is not showing under the counter-hoops is to tuck calfhide heads on it and make the collars deep....so I can suck the heads down low enough to hid the bare shell. What a shame.