even if you can get access to a simple drill press it could be enough to build one of these engines. there is a lot of layout you can do with a magic marker (as a cheap alternative to dyekem) a scribe, and a set of dividers and a machinists rule. not to mention you can but calipers from harbor freight for next to nothing. you'd be surprised what you can do without a machine shop. but you may have to select the design around what you do have available.