Just a suggestion, but if you end-up making "spin-off merchandise" of Robotech: Genesis, how about changing the name and slightly altering the designs so that it's not...well, Robotech?--This way you guys could earn some money for your hard work, put that money into making the next project even better, and (best of all) make an original story which can hopefully be bold and interesting?
Remember: Robotech's story was built upon the wings of three stories which were visually not a story about
Zor, the flower, and the battleship sent to carry it. There might be some untapped potential in your animation if you're willing to step back, pretend that no previous story exists, and make a whole new one. THAT would be a REAL GIFT of an RPG book.