I know what square T50RP drivers are capable of and you can slap them in any kind of cups you like, it'll never be worth a grand. You can buy fosters with ebony cups for 30 bucks so that makes for a quick and effective trial.
Regarding kickstarter and such they always make wild promises, like they came up with a new invention that even NASA wants to buy from them lol.....so gullible ppl pay upfront, they wait for a (long) while, they finally receive their turd and all they can do is whine on amazon:
https://www.amazon.com/BATBAND/dp/B0753Z134K
I have no explanation as to why some people would drop a grand on that Sansui for instance, especially as it's supposedly bass-shy but I guess it's more of an investment. Much like I sold a cd3k for $450 a few years ago and they now sell for a grand, I guess I shoulda waited duh. Irony has it that its drivers are made of bio-cellulose and its case is pretty much airtight so a lot of those must be in pretty bad shape by now.