Bootstrapping building Gradle without binaries

Hi, I’m looking to build Gradle from scratch without a preexisting Gradle installation or gradle wrapper, i.e. without using any Gradle binaries. Was there an early version of Gradle built without using Gradle, or some way to build an early stage of Gradle without it? There’s an old thread at Bootstrapping Gradle source build using source only but it doesn’t lead anywhere concrete. Thanks.