As for covering your scent one of the best things I've found is cedar trees.
I've built ground blinds using cedar branches and also have cut me a depression back in a cedar tree, if you sit still you will be amazed at how close the deer will come to you.
You are so right about the cedar tree's Hunter
There are cedars spotted throughout this and surrounding properties. Bucks will tear these cedars up every year with rubs during pre rut.
I've got one that's about a foot in diameter and it gets hit every year to the point it's rubbed halfway in two. It won't be long this tree may be dead.
If there's a cedar sprinkled amongst mostly other tree species, it's a very spot to post up in chances of catching that pre rutting buck.