Chip Mull at F&M has always been right on relative to his recommendations for how much paint and covering would be required. I haven't ordered in a while so I can't quote exact amounts but 4 yds sounds about right for a 1/scale cub. However, 1 quart of the yellow will not suffice. Yellow is notoriously hard to get a good even, opaque color with. I think it is usually recommended to put down a coat of white first to help (although this might not be needed if you don't put down the UV undercoat), but in any case you'll need at least 2 quarts of yellow. I normally clear coat as well but I guess that's not required. Be aware that the UV undercoating also serves to do much of the weave filling. If you skip this step, you may end up with the weave being more pronounced than you would like.