I would be interested in a set of 6 as well..
Not sure what the end goal is for this right now, but if it is to get an STC or PMA (now that the type Certificate is for sale whoever buys it can say it’s an approved part since all the data is available), those are both lengthy and expensive propositions.
Personally, with the proper documentation that could come with the parts, I would say they could fall under “owner produced” or maybe look at the VARMA policy the FAA recently approved.
https://www.eaa.org/eaa/news-and-publications/eaa-news-and-aviation-news/news/-/media/6E283E810882480CAFF007430FED9246.ashx