If anyone needs assembly services, I'd be willing to help. Feel free to contact me. I've done work for multiple customers over this year back to 2015 as well as my own projects! I've worked on vintage boards, OEM boards, as well as all sorts of customs, including Duck, Leeku, GON, LZ, KMAC, and OTD, as well as the Mira prototype I purchased.
I'm familiar with Leeku's PCBs and Jig On as well as switch and board-wide tuning services as well as more niche requests such as hot swap modding (holtite sockets, Alps included). I'm always willing to tackle a hurdle to the best of my abilities.
I'm also able to make custom cables, but I'm not sure if I'll offer services for that unless you're really, really bent on it. There's plenty of lovely cable makers out there.
So yeah, I'm always willing to help. Basic assembly would be cheap, but switch tuning takes quite a while; the more fine tuning you ask for, of course the more time will be needed for such things.