I've managed to fuse the fuselage & wings together (top & bottom = after & before, respectively). This was mostly accomplished by using the "bridge" function to bridge each part of the mesh. I had to tweak some parts, because the bridge function works by connecting the vertices of two faces, and they have to have the same amount of vertices in order for it to work.
p.s. it wasn't as simple as "bridge left upper wing section to fuselage"; I had to break it up into multiple chunks (mostly lengthwise and heightwise) in order to bridge them together.
---------- Post added at 10:27 PM ---------- Previous post was at 09:40 PM ----------
There's an issue that I want to bring up before it's too late.
HOPE-X was supposed to land at Christmas Island "because of its geographic and climatic advantages, and also because NASDA has a rocket and satellite tracking station there... The candidates in Japan - including Magejima Island in Kagoshima Prefecture as well as Tono and Kamaishi in Iwate Prefecture, were ruled out due to overcrowded airspace and the necessity for space shuttles to fly over China and the Korean Peninsula to land..." (
source)
There's a problem... we currently don't have a Christmas Island add-on for Orbiter 2010.
Orbiter 2014 (beta screenshot shown below) will have Christmas Island, but there's a couple of problems:
Clouds. That, and a need to have a flat area in the terrain data, in order to have the (currently existing) landing strip there (it is in the upper right corner).