Usually I cut the plastic by hand and fill in the gaps with putty but I cheated a bit this time. I recently got a miniature table saw that has made cutting multiple pices of plastic to the same dimension so much easier. As for a plan, it's mostly in my head.
OK, time for another update on Iron Breaker. I finally finished the top of the new chassis, just need to give it some detail now. To help even out the additional height of the rear turret mount I raised up the rear sponsons about a 1/4 of an inch. The engine was quite a bit of work but luckily I had some Shadowsword bits laying around that filled the hole nicely. It too was raised up a bit giving the engine a larger look. Still a lot to do....
http://i877.photobucket.com/albums/a...onBreaker7.jpg
http://i877.photobucket.com/albums/a...onBreaker8.jpg
http://i877.photobucket.com/albums/a...nBreaker10.jpg
http://i877.photobucket.com/albums/a...onBreaker9.jpg
So what do you think, is five twin-linked heavy bolters enough?