You said...

"...and can do so in a reasonable time frame given the fact that the patents will begin to expire in the next 5-6 years (??)."...

You forgot to put on your LAWYER CAP when you said that!?...

Patents are good for 3 more years beyond their expiration date. The time period to bring a law suit...

Add that one to your calculations...

Good luck to all...

Gil...