The shuttlebay alone is 4,38MB; the ship itself without the shuttlebay is 19.5MB, while the shuttle would add 3.4MB and the trimmed down workbee (the original, from the 3D warehouse, was way bigger and detailed) weighs in at just 674KB. Throw them all together, export to Kerkythea and the resulting file is... (don't panic) 41.3MB. So, that's the numbers :P