RE: Constructing an effective Mock Scrape.
I'm sure your method will make a great mock scrape but it seems like overkill to me.
I've made effective mock scrapes by simply kicking a good bare spot in the grass with rubber soled boots and then taking a leak on it. Picking a good spot is important with a low hanging branch in an area that is going to get some traffic, but I'm not sure you need to be wearing scent-lock clothing or buy some fancy urine to make it work.
Iset a trail camera up on my last scrape and had 3 different bucks and a doe all checking it out within a week of starting it.
That's my 2 cents. Nathan