A S-1 (and S-3 I'd guess?) should weigh real close to 100 tons, or 20,000 pounds less that A&A's weigh limit. So that shouldn't be a problem. (And why I'd recomend the S-1/3 over the S-2/4 which should weigh about 230,000 pounds. Though that's only 10,000 pounds over the limit and maybe within reach with some upgrades?)
RS
RS