I have a few projects to finish up first, but I have built several low power scale models of the Sprint ABM in the past. I'm planning on getting back in the Sprint business again...
Sprint missile...
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The ones I did back when (over twenty years ago) ranged from 13mm to 24mm motors and were between 5" and 36" tall. The only one I still have is a boilerplate model about 15" tall for 18mm motors. It's pretty rough these days, but is still a good flyer.
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I'm going to start with another 18mm version (I still have the patterns), but I really would like to do a large scale for high power.