Well. I came home from ice-fishing last night, and replied to your post. The only problem is I had too many Bytes to allow it to send. I lost the entire thing, and am not going to repeat myself now. It seems you did what I was going to suggest, doing your bird with the artificial head. The skin you have in the fridge needs to go in the freezer. You didn't need to put the presevative on there quite yet. It will start to dry out the skin, and by the time you get your head for your mount, the skin may start to decay a bit. It shouldn't be a problem if you plan on getting that head soon (you probably have a week before you have to worry, but I really have no experience on this to actually say for sure). What I typically do on my birds is skin the bird. You can either stop here and freeze the skin, or you can continue to flesh it. You can stop here, but again you will need to freeze it, or you can wash and degrease it and use something that has a bit (I repeat, a bit) of peroxide in it. This will get rid of any blood stains, and make the colors look vibrant. Once the skin is completely void of grease and suds etc., I will leave the skin wet at this point if I'm going to freeze it, or I will continue to mount the bird. If I'm going to mount the bird, I will towel dry the skin then soak it in odorless mineral spirits to evacuate the water out of the skin. The next step is to towel dry the skin, then to the tumbler using corn cob grit. I'll tumble a small duck for 6 to 10 minutes, not to curl the primary feathers and so I don't break down the feathers from their original shape. Now I'll blow dry with either a shop vac in reverse or an air compressor, or a hair drier on low/no heat and dry it till the down of the bird is nice and fluffy. You don't want to over-dry the skin, because you'll need it plyable for the running of wires and attaching the skin to the head etc. The last thing I put on my bird is dry preservatives ( fine sifted Borax) right before I start the process of running the wires for the neck/head and feet and wings.
You can still get your bird wet again at this point if you have to freeze it. Just go through the same washing process that you did before. The DP should wash out just fine.
If you have any more questions, I'll be back some time today, and I can give you my best advise.