Pretty neat solution to your problem and a nice looking model too. An alternate method might be to use a program like DoGA CGA which is more 'kit bashing' than making a model one vert at a time. Since you have good camera control in DoGA, you can render your sprites straight from there or export the models in .X format. DoGA is also very easy to use.
--
TAZ (DoGA CGA fan boy)
http://www.doga.co.jp/english L1 ia free, L2 and L3 are shareware.
The "it" is a kind of force that gives rise to technology, something undefined, but inhuman, mechanical, lifeless, a blind monster, a death force. - ZatAoMM