Here a couple of pics of my compass set and pipe set. On the compass set he distance from the holes to the center of the pan is roughly 8 inches and the holes are about 5 inche deep.On the pipe same distance from top lip of pipe no offset. If I confused you on the pipe it angled toward the trap and if you hung a plumb bob from the top lip. The point where it touches the ground 8 inches to center of pan.
I have played with offsetting the trap on the pipe dream and for some reason I have better luck being lined up dead center. When I bait the pipe I take a wad of poly fill and put it down the pipe to suspend the bait about 2 inches below the top I only use a couple of teaspoons down the pipe.
On the compass set I take a q tip and swirl it in my lure put it down the hole with the lure up if you get a little rain it up out of the water some.
I was messing with wax sand in these 2 pictures so the trap bed really stands out they do get completely blended in.The 3rd one is a pipe I put in last winter. I use #2 bridger dogless and #2 duke round jaw.
J
If you havnt already go to Mark Zagger coyote U web page he has a write up on making his pipe dream its the way I do mine