Well, with just $200,000, I would probably give 1/2 that money to the Natami folks, and wish them well, and 1/2 on a bounty to port AROS to it (including the new SAGA features).
If you up it to $500,000, I'd try to get my hands on one of the Walker prototypes and hook it up to as many data analyzers as I could find, and then send all the data to the Natami folks.
Frankly, this exercise needs at least $10,000,000 for anyone to start doing some serious dreaming, or better yet $50,000,000+.