Board is stuffed. For a while you could have gotten them unassembled, but I think there were issues with missing parts that killed Nik on replacement shipping. With the stuffed board, all the tiny parts are accounted for. But they will sell you an unpopulated board for you to source parts yourself. Typically, it's best to order the kit, or even assembled chassis, without iron if you can solder trannies in yourself.
The basic concept behind the Trainwreck Express and Liverpool is they are a JMP and Vox Top Boost (respectively) with just about every stabilizing aspect stripped away...very touch responsive...but VERY bright as well (cuts great in a band mix...sounds harsh in Madison Square Bedroom).