The banks are still likely to rake in about $500 million from the record-setting listing of the space and AI conglomerate, the report added, citing people familiar with the matter. Exclusive-SpaceX targets $1.75 trillion valuation including greenshoe option in record IPO, sources say SpaceX, Elon Musk's rocket and satellite company, plans to target a valuation of $1.75 trillion, including a greenshoe option, in its blockbuster initial public off…