I do have a 3.23 center section, open. No backing plates. These will be probably easy to find and easier to ship from locations like USA should you have to source them from there. The housing I have is stripped cleaned, and treated to three coats of plasti coat satin black paint.
I said I don't know what shipping costs. You could check. The diff is 52 5/8" wide, and you could estimate the weight at around 100 - 120 pounds maximum.
I want $800 cdn, Plus the cost of shipping.
A body 8 3/4 diff's are not easy to find. You will probably have to look outside your province to find one so you will be dealing with shipping regardless. If it were 400 Km's away in your own province you would have to deal with shipping also.? At least with mine you will not have to deal with borders.
Let me know if you are interested.
Good luck with your search.