Complex sentence: When he was free from his contract, Nesmith took Ware up on his offer, so long as Orville "Red" Rhodes would join as well, as Nesmith did not want to "just do that power trio thing".
Split into simpler sentences: When he was free from his contract, Nesmith took Ware up on his offer, so long as Orville "Red" Rhodes would join. Also, Nesmith did not want to "just do that power trio thing".