I’m supplying an STL that contains only the head of the model. I need that head resized to a precise 12-inch overall height—this is the only dimension that must be matched, the other axes can follow naturally once that height is fixed. After the resize, add a clean, centered hole at the bottom so the head can slot onto an existing body. The exact diameter and depth for this socket are shown in the reference images I’ll attach; please replicate them so the fit is snug but not overly tight. Deliverable: a single, watertight STL (or STEP if you prefer to show the work in progress) that is print-ready with the new 12-inch height and the correctly proportioned bottom hole. I’ll test-fit on my printer as soon as I receive the file, so accuracy here is critical.