Hello,
Sprue, Biro's, bits of wood and a bit of 'kit bashing' gets you a simple pressure hull.
I followed pictures of the yankee model works resin pressure hull as a guide for the pipe work which is all made out of sprue heated and bent over a candle, you can see the rest form the pix. I'll give this a coat of halfords grey primer followed by some weathering, thats about it really.
Sav.