Yeah, the angle iron idea is easy to do, cheap, and strengthens the bucket lip. Cost for cutting the clevis hook and welding to the angle iron should be minimal. I used 4 equally distributed 1/2" grade 8 bolts to attach the angle iron to the bucket. I'm not real experienced with using these hooks either, but I mounted 1 at each end of the bucket in line with the lift arms, since this is the strongest portion of the bucket. I used grab hooks to hold 3/8" chain. This size will also work with 5/16" chain. I've been told never to lift anything very heavy by using only one hook, since it throws off your balance and puts too much stress on one lift arm. For single line lifting, I attach a chain through each hook and then attach another chain to the center of the first chain. This distributes the weight between both hooks and centers the load. For using a slip hook, I do the same thing by attaching a slip hook to the center point of the chain, using a large clevis pin. To secure a load in the bucket, a hook at each end is ideal.