They make cover scents. Skunk is mighty effective. Rubbing fresh manure on the blind may well be messy, but would certainly help in this case. And then there is the cedar. All in all, you should be able to overcome the plastic smell which you are over reacting to.
Yessir, now that a couple weeks have passed, I do feel a little silly for worrying about it. Checked the camera and had doe all over the feeder immediately. Well, "all over it" for east texas....meaning 4...... nothing like stxranchmans pics!!! Dang!
However, there was a little more to the situation. This spot is on a 100 acre tract of timber that hasn't been hunted or even had anyone on it in who knows how long. I was trying to keep it as quiet and untouched as possible and just hunt trails. I camp and hunt the adjoining 100 acres. This probably made me too paranoid about moving in and feeding and putting up a new stand. These deer back there see Noone on that place and my plan was to keep it that way. It's about a mile walk down a trail to even get there. But at least I'll be dry now with it up.