The best thing to do is work backwards. The kerman probably costs $22 to send anywhere in the continental usa with UPS. I've seen these rugs get decent money per a square foot, but eBay is not a real market in the sense that seasons can affect value (e.g. retailers more often than not keep prices steady year around.) Right now, the ebay rugs are being watched. one of my long time friends has an ebay store and has said traffic is picking up, and he knows because he's getting a lot more emails. Just be sure you don't lay down the auction to end on a holiday as I'm sure you know.
As for the .99 cents listing, in all honesty, I'd do this for the sarouk without question. this will not only attract a lot of people, but a appeal to a much larger group of people than the kerman will. I can't remember what size the mohajeran was, but I think if it's 4x6, actual shipping cost is probably going to run $30 via UPS.
The kerman is more of a smaller crowd/following. you may want to try it with a buy it now of whatever $ + 22 shipping + $ handling and do a best offer. Possibly run it twice, but at first just see what happens on this one for a 10 day listing, it's worth the 40 cents when you have a best offer on it I think. Keep in mind, this may be a $4-5 listing from what I see on ebays charts, but you may get what you want. If you go this route, they can also set the rug into proportion to what would be considered a "fair market value", but I don't want to speak for him you'll have to check because this may only be for importers. If you have offers on the kerman from anyone who's interested during the fixed price, that's great, but hold out for as long as you can to respond to them, someone may come around to purchase at your asking price.
The verifications do look sharp, but the most important thing is to make sure people see it. Maybe you center it or whatever. Too much text and it will get lost, so I wouldn't repeat much of the info that's in there only because it looks better to have a 3rd party stating the facts.
Don't expect high numbers for these rugs. be ready to part with them for whatever they go for!
Also make sure to mention in your auction you're selling other rugs, and have them all listed at the same time. A lot of people forget to mention they have several similar items.
As for the wilton rugs, I would do the best offer thing as well. I can't say what would be a good number, I guess whatever you feel comfortable with. Just make sure shipping is covered!!! You may even want to say on the big one "shipping is actual cost + $xx" The small one should be less than $35 if it's smaller than 4x6 as will the sarouk too.