Vegan Tuxedos & Tux Shoes

So, any rental tux will be wool.  Nick and the groomsmen will have to buy non-wool tuxedos.  I talked to someone at Jos A Bank (met him at a bridal show) who said we could special order non-wool ones, but lost his contact info.  I may start from scratch with Jos A Bank, or might start from scratch elsewhere.  Here's one option that might be vegan that I found online: http://www.tuxedosdirect.com/product/view.php?product_id=178066&category_id=007985.  This is probably the store where we'll buy the vegan tux shoes as well: http://www.tuxedosdirect.com/category/008123.shtml.  We can get the whole tux set for under $200 here, though: http://www.cheaptux.com/products/Standard-Polyester-Tuxedo-Package.html.  I have no clue how to gauge the quality of what we're dealing with, and am not sure how to tell the difference.  I don't want to make the guys spend any more money than they need to, but I don't want them to end up with junk.  We shall see.  Luckily this does not have to be decided now.  The bridesmaid dresses got ordered in time, and this shouldn't require nearly as much time to get done.