Dude you dont go anywhere near Juhu.

Santa Cruz is the domestic airport - connected airside by a courtesy coach or 6..7 kilometers landside from Sahar (the international airport for BOM)

Near the airport you have Hyatt, Sheraton etc .. or cheaper (but still pretty decent - cheaper = $200 odd, the Hyatt etc are $350++) you have the Mirador (www.themirador.com) - that's about 15 minutes from either airport.

I would suggest that you rebook to a kingfisher flight that's later in the day - around 10:30 or 11 - so that you dont arrive dog tired and then have to wake up at 5 in the morning to check in.