I'd like to get an Otaki 1/144 C-5 as well. I got one a while back for a decent price and it showed up pretty badly damaged. Guy said it wasn't when he mailed it. Got my money back and passed it on to someone who wanted to try to repair the parts.
Another kit I'd like to get one of these days is the Aurora 1/72 DC-9. You can find them on eBay now but at ridiculous collector prices I'm not willing to pay.