I've build a few.....heres a couple things that might help ya.....I center drill mine.....mark the hook and eye placement on the wood blank.....when I (first)did them I fought to line the lip to the hookholes and eyes
you got to line it up and put the screws in was a pain..........now I mark everything and cut the square ends off then I put the lip on. then put the body in a v-block and use a hole starter and mark the hookholes and eyes then I drill them....I find it alot easyer to line everything to the lip then to line up the lip to everything
...I didn't use any weight(lead)good luck ed