A bit of oil collected in the airbox is normal. That's why part of the 6K mile service is to open the drain hoses. Running the bike as fast as it likes to go tends to fill the crankcase with a fine oil mist that gets carried out the breather hose and condenses in the airbox. When the engine wears enough to have any serious amount of blow-by, the sparkplugs will start collecting shiny, wet looking carbon deposits.
As for gas collecting in the airbox, by any chance was the bike parked with the petcock left on? A lot of the Hinkley bikes are equipped with a polution control valve that closes the floatbowl vents when the ignition is off. (cycle the kill switch with the engine not running. If you hear a sound like a relay clicking, you have this) When it's even slightly warm, the gas in the floatbowls will expand. With the vents closed, it has noplace to go but up the main and pilot jets into the carb bore. Some will evaporate there, cooling the carb and the gas in the bowls contracts, the float drops, the bowls refill and it starts all over again.
