Fascinating project, thanks for the great video.
I like the addition of the option to install SMA connectors on the input side of the PCB. It's always nice to be able to add an assortment of test jigs to a measurement device if needed. Nice touch.
I will probably make a kit available, I think it will be around $50 including all parts (except the Analog discovery itself), it will work with both version 1 and 2 of the Analog Discovery and include everything including reasonable kelvin clips. I hope that is reasonable, I think it will cover the cost of all the parts with shipping from various vendors etc. It should not be a problem to solder the kit together for anyone interested, it's all 0805 or larger parts and so8/16 parts.
Shipping will be an additional $10 world wide. I will only be able to handle small quantities, but I think not a problem as the interest in this should be quite narrow. Anyway, the software if free for anyone who'd rather build their own, just keep in mind this is a hobby project so while I'll do my best to fix any bugs it might take a bit of time for me to respond to any bug reports.
I'll post another video on general usage and calibration of the device for best performance.
I'm sending one to Dave for evaluation, will be interesting to hear his opinion on the project.