If all the hypothetical investors require is the MMP Portfolio then they make PTSC an offer for their 50% of PDS, after agreeing terms with TPL.
One thing you seem to forget is that there are possibly over 500 infringing companies. If each of these were to pay just $10million each for a license, that's $2.5 billion to PTSC. Do you still believe that $1.00 would be a fair deal which is perceived as being ethically and morally sound?
Be well