That would actually be a cool storyline to explore: In the far future, a newly spacefaring PC-descended species discovers a long-derelict Factory Satellite rigged for variable fighter production. Giant WTF moment occurs.
Pretty clever! Sounds like you've basically abstracted the HUD control to a driver, so that if/when a game is changed or updated you simply update the 'driver' and everything else still works as it had?
According to the product page, the Eltreum model is nearly 14" long! Will definitely be thinking about committing to them, and agreed, they do look cool.
I had the GX-34 and it was pretty phenomenal. I hope you do get your wish of a rerelease.
I've seen them at Ebay and AliExpress. I'm sure there are others. I don't know that it's kosher to post a link, but can in pm.
Still a bit more spendy than what I'd be prepared to pay for a KO. I have the KO Hikaru 1S with strike parts but paid a good bit less than what they're asking for the 1Js