Anyone with a few tens of $M kicking around might want to look at this. Sad. I remember following these guys back in 2000, during the birth of the New Space movement. I really liked the operational concept behind their tea cart engine: https://xcor.com/propulsion/research-development/
Hard to believe they were founded 18 years ago.
I guess they never got enough money to do a lot of things.
I remember when the New Space guys and gals would laugh at Elon Musk for spending > 100M, comparing him to old-space.
I think the lesson is that to do space on the cheap you need 100M, not 10M.