Not crazy I do this quite often.
Oriiginal Scotty's were broken up into multiple parts between 3 chippers, I took the 312 and then added some others from here and there to create one of my Magnolia sets.
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This was an old ASM personal set of Romans I acquired from Jim B that were just fugly. I turned most of them with some other addons into my Club Royale (Four Queens tribute) set
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Ive got at least 2-3 other Custom sets from other chippers that are projects to relabel (I like to use repurpose). A Jockey Mold set, An MD50 set and another HHR set. Taking the old custom sets that people are tired of or not going to use and adding a few pieces with some Gear labels has always been one of my favorite ways to build sets.