Probably best to sample 2 b drums, one and octave up from the other, and then eq the bottom end, and maybe add a snare, I'm just guessing here, but I reckon that's the best starting point, and maybe layer a few more sounds until it sounds like what u want, if u use different tracks and just keep adding sounds in a non destructive manner u'll sooner or later find a sound u can use I'm sure!