Thunderbirds - Give or take a million

The “Thunderbirds” was a television series created in 1965.

It featured the Tracy family living on Tracy Island and working for International Rescue.

Between 1965 and 1968, 32 episodes and two feature films were produced.

This cache series uses the names of these episodes and feature films.
Some caches use a code based on the Thunderbirds to mask some of the coordinates. You’ll need to do a little bit of research.

Episode 6 Season 2 - Give or take a million

This is the final Thunderbird episode in the two seasons.

In conjunction with Harman's Department Store, the directors of a Children's Hospital arrange for a container full of presents to be launched by rocket from the roof of the store and dropped in a playground on Christmas Day. By arrangement with Jeff Tracy, one of the gift boxes will contain an invitation for one of the children to visit Tracy Island and spend Christmas with International Rescue. 

As the rocket is being packed with presents on Christmas Eve, two crooks, Kil and Kenny, break into the Second National Bank from the toy department of Harman's, which is just next door. Using a harness on a pulley to lift him clear of the touch-sensitive vault floor, Kenny steals the gold reserves stacked on the shelves of the vault, but he accidentally dislodges a pencil from a table and it falls on to the floor, setting off the alarm. The two crooks hide in the container of toys, just as it is loaded on to the rocket. 

The cache is not at the listed coordinates.

It is at S27 39.XXX  E153 12.YYY

Charles "Bud" Tingwell, an Australian actor who starred in Homicide and briefly in "Home and Away", did voice acting for Thunderbirds.

If True then XXX = 690+ Virgil

If False then XXX = 680 + Virgil

Ray Barrett, an Australian actor, did voice acting for Thunderbirds.

If True then YYY = 104 + Scott

If False then YYY = 110 + Scott

Checksum :  YYY - XXX = 587

 FTF to IolantheK