Technique Tip: If you have a gap in your plastic that you need to fill, a good trick is to apply a little bit of glue around the edge of the gap, slowly sprinkle some baking powder into the glue. The baking soda will bind with the glue and build up a plastic like material that if you keep working your way towards the middle of the gap will fill in the gap. Once the baking powder has filled in the gap, put a little thin glue over it to bind it together. I hope this isn’t too confusing. It works real well and can be easily sanded afterwards. If anyone else has tried this method, you might chime in and explain it a little better. This is best used when the gap is too big for putty or needs to have some structural integrity.
That shows some promise, Bob, especially if you could replace the buckle with one like Lee found. I just wonder how long it is as you wouldn't want to to stick out below your vest. Some load bearing backs come all the way down to your hips, but I can't tell if this one does or not.