U.S.M.C OA-11a Mongoose, CAS/COIN aircraft.

[Tophe]

What aircraft company is this supposed to be a project from?

The answer to your first question Stargazer is.....mine!!  
Chris.

I do love the design bureau (and prototype staff) of the so famous Chrisonord Aerospace Company Associated... (yes CACA, hey French readers: don't smile! respect please!) still enriching/updating the universe of twin-boomers