You can clone with
HTTPS or Subversion.
Multiple assemblies can be merged into one for deployment using ILMerge
This technique is used in the Sinatra application to combine Serfs, IREmbedded and IRSinatra into one executable thus:
"C:\Program Files\Microsoft\ILMerge\ILMerge.exe" /out:merge\IRSinatra.exe IRSinatra.exe IREmbeddedLibraries.dll IREmbeddedApp.dll Serfs.dll
(This is performed as a post-build event in the IRSinatra application.)
IronRuby itself still needs to be installed and available on the system. So far, trying to merge the IronRuby/DLR executables into the executable has not been possible.