AP does require a little work with trimming etc to get things aligned. Be patient with it, look at plenty of other build threads to check how things look when assembling and enjoy the experience .
What Vern has suggested is definitely a good way to go about getting your halves together. (For sale sign material) basically an inner cover strip and you can use your ABS to make these. As its glued on the inside makes adding your external cover strip much easier to align and look correct.
Because your two thigh halves don't lion up perfectly along their length is not an issue at all. You want the bottoms of them to be reasonably level, as the tops can be partially hidden by the cover strip, or you can trim the tops for better asthetics.
I love my AP and enjoyed the challenge of building it. Check out my build thread and Centurion application under the Redbacks logo below ( if you are viewing this on the website) you won't see it if on Tapatalk.
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