Hello,

This is a Bottlehead Crack 1.1 with Speedball upgrade installed.
Everything is already assembled and functioning fine.
I personally assembled (have professional experience) it with silver-plated copper wires as shown in pictures.
Based on the tests I've done, it sounded excellent with high impedance headphones (I have 420ohms Audio-Technica), not too well with a few Hifiman planars I owned (HE1000, Deva Pro) as they required more volume / power.

Includes the 2 stock tubes, GE 6AS7 and Baldwin 12AU7 tubes, and power cord. Based on review impressions, purchasing other tubes are recommended - I did not personally think the stock tubes sounded great with some of my headphones, But that is part of the tube game.
Also includes 3 extra fuses just in case, stock unused wires that came with kit, and the resistors removed for speedball kit. 3K ohm resistors have extended leads (in case you want to revert the bigger of the 2 boards back to stock) but 22.1K ohm resistors leads are too short to be reused.

Will be packaged carefully to hopefully avoid damage during shipment. Free shipping. I can email you the assembly manuals PDFs in case you need any troubleshooting.

Note: the main plate does not secure down to the wooden enclosure, it just rests on it.