I don't have any pictures. So I'll do my best to describe the set up. First, use the right size charge well - such that most of the internal volume is taken up by the black powder. I place the head of the e-match at the bottom of the well and then fold it over the side and wrap a piece of tape around the outside of the e-match and well to keep it in place. Add the black powder and then pack it in and fill up the rest of the volume with wadding. I seal it with Parafilm. You can also use masking tape. Hope that is clear.
There are a few formula's to calculate the amount of black powder needed. I use:
O.D. x O.D. x L(length of available volume in body tube) x 0.006 = grams of black powder.
I use that as a starting point and then ground test, ground test, ground test.