The Aoshima kit has the same problems as the Revell, modeled with Block 1 rather than the Block 2 config that actually flew.
http://www.realspacemodels.com/html/catalog5.htm
and
http://mek.kosmo.cz/newware/
are possible fixes.
For references:
http://www.apollosaturn.com/
These are just few of many possibilities.
Ken
