Do you mean great kilt or the 8yd traditional. Just asking to clarify so that we get responses aligned.
Back to the sporran. I have also seen (should have bought) the carry-all sporran. There are a few options regarding colour and such. Well worth a look at Freedom kilts, methinks. As others have mentioned also, Freedom and USAK have kilts with pockets. Until I'd seen it at Freedom I wouldn't have imagined it possible. Couldn't even tell all those keys and other items were there. Might be worth looking into for yourself.