I have an old 168mm uncoated Ser. III Dagor that covers 8x10" stopped down, but I've heard of others that don't cover, perhaps because they are different versions or because they have been mounted in a different way. A little shorter than you asked for, but it's compact and not too expensive if you can find one.

As Steve said, the 190 WF Ektar isn't terribly compact, but it covers.