<font color="yellow">"The obvious answer... (very un-PC,) is to start adding solids to the stack. "</font><br /><br />Well the thought was to have a team aiming to win Bigelow's orbital prize. By using Falcon V as a booster, they would only need to develop a crew capsule. Since Falcon I hasn't even flown yet, and V is (presumably) still a bunch of pictures and bytes in a CAD file -- planning on strap-on boosters being available by 2010 is reaching more than a bit.<br /><br />Making the assumption that the Falcon V will be built -- this would seem to be the cheapest and surest way to win the Bigelow prize. No craft will be cheaper to design and build than a capsule -- and starting with a pre-existing concept has the potential to reduce costs and design times even further.<br /><br />That having been said -- the Gemini program cost 1.147 billion (~1965 dollars). I can't get a breakdown on how much of that was design/construction vs. flight costs -- but it's obvious that recreating it on a shoestring will be... interesting. I don't know how much access a private company would have to the original engineering drawings, specs, etc. If they have to re-invent the capsule from scratch, it's not going to happen.