The plans for the Ultra Sport 1000 (attached) state the all-up weight should be about 12 pounds and the recommended Super Tigre engine is the ST 2500 with a 16x10 prop. The wing area is listed as 1015 sq inches (or 7.0486 sq ft), This would give a wing loading of 27.24 ounces per sq ft. For a pattern/sport plane this size (74" span), this wing loading should work great. Most people who fly Ultra Sport aircraft are usually concerned with good to unlimited vertical performance, therefore a power loading of150 to 175 watts per pound is desirable. This would require approximately 2.5 HP. Your ST-2000 engine will fly it, but the vertical performance may be less than stellar.