CAIBI project benchmark: Zynthian V5.1
Prompt version 1.0

Help me build Zynthian V5.1 using the existing creator project at https://wiki.zynthian.org/index.php/Assembling_Zynthian_Kit_V5.1. This is a CAIBI benchmark adaptation of the project build brief, not a claim about how the creator used AI.

Project context:
- An open Raspberry Pi 5 music workstation and synthesizer platform available as a documented DIY kit, combining audio I/O, MIDI, touchscreen control, sequencing, sampling, effects and open software.
- Build context: Zynthian V5.1 black anodised aluminium case; Zynthian V5.1 main board; Control board with silicone keypad and four machined aluminium knobs; 5-inch DSI capacitive touchscreen; Raspberry Pi 5, selected separately from the base kit where required; Thermal block and thermal pad; Display, control, USB-C and microSD flat-cable assemblies; 24 V 1.5 A PSU where selected; Good-quality microSD card of at least 32 GB, not included in the kit; Optional CR2032 RTC battery.
- Where AI helps: ZynthianOS troubleshooting, MIDI and audio routing help, Configuration planning, Python and integration work, Custom workflow investigation.
- Physical work: Fit thermal pads, Mount Raspberry Pi and boards, Connect delicate ribbon cables, Prepare microSD, Connect and verify real audio and MIDI hardware.
- Main limitation: The €395 headline is the base kit price before VAT and optional Raspberry Pi 5 or PSU choices, and a microSD card is required separately. The physical build is approachable, but ribbon cables, thermal-pad placement and first-boot software still need careful handling.

Read the source first. Use its published design, files, dimensions and parts as the baseline; do not redesign it unless a missing detail requires a clearly labelled proposal. If you cannot access a source or verify a revision, say so.

Provide one practical build package:
1. Design and files: explain the source design, link the original editable files, and identify missing files or modifications.
2. Parts and fabrication: give quantities, exact variants and compatibility, plus a cutting or printing list where applicable. Preserve source dimensions; flag anything unconfirmed.
3. UK and US purchasing: direct product links, checked dates, stock, pack sizes, taxes, delivery and regional costs. Mark unverifiable details as unknown; do not invent links, prices or availability.
4. Assembly: an ordered guide covering fabrication, fitting, wiring or software as applicable, setup, checks and troubleshooting.
5. Cost and time: separate parts, fabrication, delivery, hands-on time and machine time, with assumptions and exclusions.
6. Function and ease: a test plan for the project's stated purpose, likely difficulties, required skills and any corrections or limitations.

Keep source facts, your proposals and items needing physical verification distinct. An estimate is not a measured build result. Do not claim to have built or tested hardware. Include failed attempts and omissions. If a section does not apply, say why.

Use the source as accessed during this run and record its revision or access date. The prompt is fixed; the linked source can change.