Several months ago, I bought a spare SI board from Ivo. Thought I needed it for the M5. Turns out I did not.
Available for $175/shipped. Here's the part:
https://www.ebay.com/itm/333569633682?h ... Swsi5eqRWK
F/S SI board
Re: F/S SI board
This part has been sold. I understand from my international buyer that these are now NLA from Ivo.